Subtract 6/27 from 72/70, Solve 1 2/70

Subtract 6/27 from 72/70

1^st number: 1 2/70, 2^nd number: 6/27

72/70 - 6/27 is 254/315.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 27 is 1890

Next, find the equivalent fraction of both fractional numbers with denominator 1890
For the 1st fraction, since 70 × 27 = 1890,
72/70 = 72 × 27/70 × 27 = 1944/1890
Likewise, for the 2nd fraction, since 27 × 70 = 1890,
6/27 = 6 × 70/27 × 70 = 420/1890
Subtract the two like fractions:
1944/1890 - 420/1890 = 1944 - 420/1890 = 1524/1890
After reducing the fraction, the answer is 254/315

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