Subtract 8/84 from 70/15, Solve 4 10/15

Subtract 8/84 from 70/15

1^st number: 4 10/15, 2^nd number: 8/84

70/15 - 8/84 is 32/7.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 84 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 15 × 28 = 420,
70/15 = 70 × 28/15 × 28 = 1960/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
8/84 = 8 × 5/84 × 5 = 40/420
Subtract the two like fractions:
1960/420 - 40/420 = 1960 - 40/420 = 1920/420
After reducing the fraction, the answer is 32/7
In mixed form: 44/7

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