Subtract 48/84 from 30/15, Solve 2 0/15

Subtract 48/84 from 30/15

1^st number: 2 0/15, 2^nd number: 48/84

30/15 - 48/84 is 10/7.

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,
30/15 = 30 × 28/15 × 28 = 840/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
48/84 = 48 × 5/84 × 5 = 240/420
Subtract the two like fractions:
840/420 - 240/420 = 840 - 240/420 = 600/420
After reducing the fraction, the answer is 10/7
In mixed form: 13/7

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