Subtract 25/60 from 72/21
1st number: 3 9/21, 2nd number: 25/60
72/21 - 25/60 is 253/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 21 × 20 = 420,
72/21 = 72 × 20/21 × 20 = 1440/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
25/60 = 25 × 7/60 × 7 = 175/420 - Subtract the two like fractions:
1440/420 - 175/420 = 1440 - 175/420 = 1265/420 - After reducing the fraction, the answer is 253/84
- In mixed form: 31/84
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