Subtract 3/21 from 49/72
49/72 - 3/21 is 271/504.
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,
49/72 = 49 × 7/72 × 7 = 343/504 - Likewise, for the 2nd fraction, since 21 × 24 = 504,
3/21 = 3 × 24/21 × 24 = 72/504 - Subtract the two like fractions:
343/504 - 72/504 = 343 - 72/504 = 271/504
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