Subtract 20/7 from 3/28
1st number: 3/28, 2nd number: 2 6/7
3/28 - 20/7 is -11/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 7 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
3/28 = 3 × 1/28 × 1 = 3/28 - Likewise, for the 2nd fraction, since 7 × 4 = 28,
20/7 = 20 × 4/7 × 4 = 80/28 - Subtract the two like fractions:
3/28 - 80/28 = 3 - 80/28 = -77/28 - After reducing the fraction, the answer is -11/4
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