Subtract 21/15 from 24/16, Solve 1 8/16

Subtract 21/15 from 24/16

1^st number: 1 8/16, 2^nd number: 1 6/15

24/16 - 21/15 is 1/10.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 15 is 240

Next, find the equivalent fraction of both fractional numbers with denominator 240
For the 1st fraction, since 16 × 15 = 240,
24/16 = 24 × 15/16 × 15 = 360/240
Likewise, for the 2nd fraction, since 15 × 16 = 240,
21/15 = 21 × 16/15 × 16 = 336/240
Subtract the two like fractions:
360/240 - 336/240 = 360 - 336/240 = 24/240
After reducing the fraction, the answer is 1/10

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