Subtract 15/20 from 72/14
1st number: 5 2/14, 2nd number: 15/20
72/14 - 15/20 is 123/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 14 × 10 = 140,
72/14 = 72 × 10/14 × 10 = 720/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
15/20 = 15 × 7/20 × 7 = 105/140 - Subtract the two like fractions:
720/140 - 105/140 = 720 - 105/140 = 615/140 - After reducing the fraction, the answer is 123/28
- In mixed form: 411/28
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