Subtract 90/10 from 30/35
1st number: 30/35, 2nd number: 9 0/10
30/35 - 90/10 is -57/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 35 × 2 = 70,
30/35 = 30 × 2/35 × 2 = 60/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
90/10 = 90 × 7/10 × 7 = 630/70 - Subtract the two like fractions:
60/70 - 630/70 = 60 - 630/70 = -570/70 - After reducing the fraction, the answer is -57/7
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