Subtract 36/18 from 48/21, Solve 2 6/21

Subtract 36/18 from 48/21

1^st number: 2 6/21, 2^nd number: 2 0/18

48/21 - 36/18 is 2/7.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 21 × 6 = 126,
48/21 = 48 × 6/21 × 6 = 288/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
36/18 = 36 × 7/18 × 7 = 252/126
Subtract the two like fractions:
288/126 - 252/126 = 288 - 252/126 = 36/126
After reducing the fraction, the answer is 2/7

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