Subtract 24/21 from 24/18, Solve 1 6/18

Subtract 24/21 from 24/18

1^st number: 1 6/18, 2^nd number: 1 3/21

24/18 - 24/21 is 4/21.

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

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 18 × 7 = 126,
24/18 = 24 × 7/18 × 7 = 168/126
Likewise, for the 2nd fraction, since 21 × 6 = 126,
24/21 = 24 × 6/21 × 6 = 144/126
Subtract the two like fractions:
168/126 - 144/126 = 168 - 144/126 = 24/126
After reducing the fraction, the answer is 4/21

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