Subtract 8/21 from 48/72
48/72 - 8/21 is 2/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 21 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
48/72 = 48 × 7/72 × 7 = 336/504 - Likewise, for the 2nd fraction, since 21 × 24 = 504,
8/21 = 8 × 24/21 × 24 = 192/504 - Subtract the two like fractions:
336/504 - 192/504 = 336 - 192/504 = 144/504 - After reducing the fraction, the answer is 2/7
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