Subtract 30/84 from 72/16, Solve 4 8/16

Subtract 30/84 from 72/16

1^st number: 4 8/16, 2^nd number: 30/84

72/16 - 30/84 is 29/7.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 84 is 336

Next, find the equivalent fraction of both fractional numbers with denominator 336
For the 1st fraction, since 16 × 21 = 336,
72/16 = 72 × 21/16 × 21 = 1512/336
Likewise, for the 2nd fraction, since 84 × 4 = 336,
30/84 = 30 × 4/84 × 4 = 120/336
Subtract the two like fractions:
1512/336 - 120/336 = 1512 - 120/336 = 1392/336
After reducing the fraction, the answer is 29/7
In mixed form: 41/7

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