Subtract 7/24 from 72/42
1st number: 1 30/42, 2nd number: 7/24
72/42 - 7/24 is 239/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
72/42 = 72 × 4/42 × 4 = 288/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
7/24 = 7 × 7/24 × 7 = 49/168 - Subtract the two like fractions:
288/168 - 49/168 = 288 - 49/168 = 239/168 - In mixed form: 171/168
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