Subtract 90/70 from 15/35
1st number: 15/35, 2nd number: 1 20/70
15/35 - 90/70 is -6/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 35 × 2 = 70,
15/35 = 15 × 2/35 × 2 = 30/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
90/70 = 90 × 1/70 × 1 = 90/70 - Subtract the two like fractions:
30/70 - 90/70 = 30 - 90/70 = -60/70 - After reducing the fraction, the answer is -6/7
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