Subtract 20/7 from 72/5
1st number: 14 2/5, 2nd number: 2 6/7
72/5 - 20/7 is 404/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 5 × 7 = 35,
72/5 = 72 × 7/5 × 7 = 504/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
20/7 = 20 × 5/7 × 5 = 100/35 - Subtract the two like fractions:
504/35 - 100/35 = 504 - 100/35 = 404/35 - In mixed form: 1119/35
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