Subtract 20/7 from 30/16, Solve 1 14/16

Subtract 20/7 from 30/16

1^st number: 1 14/16, 2^nd number: 2 6/7

30/16 - 20/7 is -55/56.

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,
30/16 = 30 × 7/16 × 7 = 210/112
Likewise, for the 2nd fraction, since 7 × 16 = 112,
20/7 = 20 × 16/7 × 16 = 320/112
Subtract the two like fractions:
210/112 - 320/112 = 210 - 320/112 = -110/112
After reducing the fraction, the answer is -55/56

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