Subtract 80/7 from 70/16, Solve 4 6/16

Subtract 80/7 from 70/16

1^st number: 4 6/16, 2^nd number: 11 3/7

70/16 - 80/7 is -395/56.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 7 is 112

Next, find the equivalent fraction of both fractional numbers with denominator 112
For the 1st fraction, since 16 × 7 = 112,
70/16 = 70 × 7/16 × 7 = 490/112
Likewise, for the 2nd fraction, since 7 × 16 = 112,
80/7 = 80 × 16/7 × 16 = 1280/112
Subtract the two like fractions:
490/112 - 1280/112 = 490 - 1280/112 = -790/112
After reducing the fraction, the answer is -395/56

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