Subtract 2/20 from 27/7, Solve 3 6/7

Subtract 2/20 from 27/7

1^st number: 3 6/7, 2^nd number: 2/20

27/7 - 2/20 is 263/70.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 20 is 140

Next, find the equivalent fraction of both fractional numbers with denominator 140
For the 1st fraction, since 7 × 20 = 140,
27/7 = 27 × 20/7 × 20 = 540/140
Likewise, for the 2nd fraction, since 20 × 7 = 140,
2/20 = 2 × 7/20 × 7 = 14/140
Subtract the two like fractions:
540/140 - 14/140 = 540 - 14/140 = 526/140
After reducing the fraction, the answer is 263/70
In mixed form: 353/70

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