Subtract 18/28 from 36/20
1st number: 1 16/20, 2nd number: 18/28
36/20 - 18/28 is 81/70.
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,
36/20 = 36 × 7/20 × 7 = 252/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
18/28 = 18 × 5/28 × 5 = 90/140 - Subtract the two like fractions:
252/140 - 90/140 = 252 - 90/140 = 162/140 - After reducing the fraction, the answer is 81/70
- In mixed form: 111/70
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