Subtract 28/7 from 20/35
1st number: 20/35, 2nd number: 4 0/7
20/35 - 28/7 is -24/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 35 × 1 = 35,
20/35 = 20 × 1/35 × 1 = 20/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
28/7 = 28 × 5/7 × 5 = 140/35 - Subtract the two like fractions:
20/35 - 140/35 = 20 - 140/35 = -120/35 - After reducing the fraction, the answer is -24/7
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