This is why the 53ET is wonderful. Look at row 31 and notice how close it is to 3/2!
# cents f (Hz) f/f1 ratio fl(ratio) abs err rel err (%)
--------------------------------------------------------------------------------
0 0.000 220.000000 1.000000 1 1.000000 0.00000000 0.00000000
1 22.642 222.896111 1.013164 77/76 1.013158 0.00000625 0.00061671
2 45.283 225.830348 1.026502 155/151 1.026490 0.00001151 0.00112172
3 67.925 228.803211 1.040015 26/25 1.040000 0.00001459 0.00140328
4 90.566 231.815209 1.053705 157/149 1.053691 0.00001422 0.00134953
5 113.208 234.866858 1.067577 79/74 1.067568 0.00000906 0.00084842
6 135.849 237.958678 1.081630 53/49 1.081633 -0.00000230 -0.00021233
7 158.491 241.091200 1.095869 80/73 1.095890 -0.00002132 -0.00194529
8 181.132 244.264960 1.110295 151/136 1.110294 0.00000115 0.00010384
9 203.774 247.480498 1.124911 9/8 1.125000 -0.00008864 -0.00788006
10 226.415 250.738367 1.139720 155/136 1.139706 0.00001397 0.00122556
11 249.057 254.039123 1.154723 209/181 1.154696 0.00002715 0.00235146
12 271.698 257.383330 1.169924 179/153 1.169935 -0.00001041 -0.00089002
13 294.340 260.771561 1.185325 243/205 1.185366 -0.00004058 -0.00342318
14 316.981 264.204395 1.200929 251/209 1.200957 -0.00002787 -0.00232058
15 339.623 267.682420 1.216738 247/203 1.216749 -0.00001050 -0.00086273
16 362.264 271.206229 1.232756 143/116 1.232759 -0.00000303 -0.00024601
17 384.906 274.776427 1.248984 261/209 1.248804 0.00017993 0.01440620
18 407.547 278.393623 1.265426 205/162 1.265432 -0.00000654 -0.00051675
19 430.189 282.058437 1.282084 50/39 1.282051 0.00003252 0.00253655
20 452.830 285.771494 1.298961 126/97 1.298969 -0.00000773 -0.00059547
21 475.472 289.533431 1.316061 254/193 1.316062 -0.00000113 -0.00008556
22 498.113 293.344891 1.333386 4/3 1.333333 0.00005253 0.00393979
23 520.755 297.206525 1.350939 281/208 1.350962 -0.00002279 -0.00168699
24 543.396 301.118994 1.368723 245/179 1.368715 0.00000762 0.00055638
25 566.038 305.082967 1.386741 251/181 1.386740 0.00000043 0.00003094
26 588.679 309.099123 1.404996 281/200 1.405000 -0.00000399 -0.00028369
27 611.321 313.168148 1.423492 279/196 1.423469 0.00002219 0.00155919
28 633.962 317.290738 1.442231 287/199 1.442211 0.00001957 0.00135722
29 656.604 321.467599 1.461216 301/206 1.461165 0.00005131 0.00351154
30 679.245 325.699445 1.480452 265/179 1.480447 0.00000509 0.00034405
31 701.887 329.986999 1.499941 3/2 1.500000 -0.00005910 -0.00393995
32 724.528 334.330995 1.519686 193/127 1.519685 0.00000130 0.00008556
33 747.170 338.732176 1.539692 97/63 1.539683 0.00000917 0.00059546
34 769.811 343.191295 1.559960 39/25 1.560000 -0.00003957 -0.00253661
35 792.453 347.709114 1.580496 324/205 1.580488 0.00000817 0.00051675
36 815.094 352.286406 1.601302 245/153 1.601307 -0.00000534 -0.00033363
37 837.736 356.923955 1.622382 232/143 1.622378 0.00000399 0.00024601
38 860.377 361.622553 1.643739 263/160 1.643750 -0.00001112 -0.00067668
39 883.019 366.383004 1.665377 353/212 1.665094 0.00028295 0.01699022
40 905.660 371.206122 1.687301 356/211 1.687204 0.00009676 0.00573486
41 928.302 376.092733 1.709512 359/210 1.709524 -0.00001139 -0.00066615
42 950.943 381.043671 1.732017 265/153 1.732026 -0.00000946 -0.00054596
43 973.585 386.059785 1.754817 365/208 1.754808 0.00000951 0.00054198
44 996.226 391.141931 1.777918 16/9 1.777778 0.00014009 0.00787943
45 1018.868 396.290979 1.801323 272/151 1.801325 -0.00000187 -0.00010384
46 1041.509 401.507810 1.825036 73/40 1.825000 0.00003550 0.00194525
47 1064.151 406.793317 1.849061 98/53 1.849057 0.00000393 0.00021233
48 1086.792 412.148402 1.873402 148/79 1.873418 -0.00001589 -0.00084842
49 1109.434 417.573982 1.898064 391/206 1.898058 0.00000530 0.00027946
50 1132.075 423.070986 1.923050 25/13 1.923077 -0.00002699 -0.00140330
51 1154.717 428.640353 1.948365 302/155 1.948387 -0.00002186 -0.00112173
52 1177.358 434.283036 1.974014 152/77 1.974026 -0.00001217 -0.00061671
53 1200.000 440.000000 2.000000 2 2.000000 0.00000000 0.00000000