Subtract 18/28 from 40/20
1st number: 2 0/20, 2nd number: 18/28
40/20 - 18/28 is 19/14.
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,
18/28 = 18 × 5/28 × 5 = 90/140 - Subtract the two like fractions:
280/140 - 90/140 = 280 - 90/140 = 190/140 - After reducing the fraction, the answer is 19/14
- In mixed form: 15/14
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