Subtract 48/27 from 21/24, Solve 21/24

Subtract 48/27 from 21/24

1^st number: 21/24, 2^nd number: 1 21/27

21/24 - 48/27 is -65/72.

Find the least common denominator or LCM of the two denominators:
LCM of 24 and 27 is 216

Next, find the equivalent fraction of both fractional numbers with denominator 216
For the 1st fraction, since 24 × 9 = 216,
21/24 = 21 × 9/24 × 9 = 189/216
Likewise, for the 2nd fraction, since 27 × 8 = 216,
48/27 = 48 × 8/27 × 8 = 384/216
Subtract the two like fractions:
189/216 - 384/216 = 189 - 384/216 = -195/216
After reducing the fraction, the answer is -65/72

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