Subtract 72/54 from 70/42
1st number: 1 28/42, 2nd number: 1 18/54
70/42 - 72/54 is 1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 42 × 9 = 378,
70/42 = 70 × 9/42 × 9 = 630/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
72/54 = 72 × 7/54 × 7 = 504/378 - Subtract the two like fractions:
630/378 - 504/378 = 630 - 504/378 = 126/378 - After reducing the fraction, the answer is 1/3
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