Subtract 5/72 from 84/42
1st number: 2 0/42, 2nd number: 5/72
84/42 - 5/72 is 139/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 42 × 12 = 504,
84/42 = 84 × 12/42 × 12 = 1008/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
5/72 = 5 × 7/72 × 7 = 35/504 - Subtract the two like fractions:
1008/504 - 35/504 = 1008 - 35/504 = 973/504 - After reducing the fraction, the answer is 139/72
- In mixed form: 167/72
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