Subtract 21/48 from 7/27
7/27 - 21/48 is -77/432.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 48 is 432
Next, find the equivalent fraction of both fractional numbers with denominator 432 - For the 1st fraction, since 27 × 16 = 432,
7/27 = 7 × 16/27 × 16 = 112/432 - Likewise, for the 2nd fraction, since 48 × 9 = 432,
21/48 = 21 × 9/48 × 9 = 189/432 - Subtract the two like fractions:
112/432 - 189/432 = 112 - 189/432 = -77/432
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