Subtract 42/49 from 72/20
1st number: 3 12/20, 2nd number: 42/49
72/20 - 42/49 is 96/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 49 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 20 × 49 = 980,
72/20 = 72 × 49/20 × 49 = 3528/980 - Likewise, for the 2nd fraction, since 49 × 20 = 980,
42/49 = 42 × 20/49 × 20 = 840/980 - Subtract the two like fractions:
3528/980 - 840/980 = 3528 - 840/980 = 2688/980 - After reducing the fraction, the answer is 96/35
- In mixed form: 226/35
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