Subtract 90/30 from 12/70
1st number: 12/70, 2nd number: 3 0/30
12/70 - 90/30 is -99/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
12/70 = 12 × 3/70 × 3 = 36/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
90/30 = 90 × 7/30 × 7 = 630/210 - Subtract the two like fractions:
36/210 - 630/210 = 36 - 630/210 = -594/210 - After reducing the fraction, the answer is -99/35
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