Subtract 70/7 from 20/48, Solve 20/48

Subtract 70/7 from 20/48

1^st number: 20/48, 2^nd number: 10 0/7

20/48 - 70/7 is -115/12.

Find the least common denominator or LCM of the two denominators:
LCM of 48 and 7 is 336

Next, find the equivalent fraction of both fractional numbers with denominator 336
For the 1st fraction, since 48 × 7 = 336,
20/48 = 20 × 7/48 × 7 = 140/336
Likewise, for the 2nd fraction, since 7 × 48 = 336,
70/7 = 70 × 48/7 × 48 = 3360/336
Subtract the two like fractions:
140/336 - 3360/336 = 140 - 3360/336 = -3220/336
After reducing the fraction, the answer is -115/12

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