Subtract 84/72 from 60/21
1st number: 2 18/21, 2nd number: 1 12/72
60/21 - 84/72 is 71/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 21 × 24 = 504,
60/21 = 60 × 24/21 × 24 = 1440/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
84/72 = 84 × 7/72 × 7 = 588/504 - Subtract the two like fractions:
1440/504 - 588/504 = 1440 - 588/504 = 852/504 - After reducing the fraction, the answer is 71/42
- In mixed form: 129/42
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