Subtract 4/48 from 21/27
21/27 - 4/48 is 25/36.
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,
21/27 = 21 × 16/27 × 16 = 336/432 - Likewise, for the 2nd fraction, since 48 × 9 = 432,
4/48 = 4 × 9/48 × 9 = 36/432 - Subtract the two like fractions:
336/432 - 36/432 = 336 - 36/432 = 300/432 - After reducing the fraction, the answer is 25/36
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