Subtract 14/28 from 40/20
1st number: 2 0/20, 2nd number: 14/28
40/20 - 14/28 is 3/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
40/20 = 40 × 7/20 × 7 = 280/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
14/28 = 14 × 5/28 × 5 = 70/140 - Subtract the two like fractions:
280/140 - 70/140 = 280 - 70/140 = 210/140 - After reducing the fraction, the answer is 3/2
- In mixed form: 11/2
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