Subtract 90/70 from 7/10
1st number: 7/10, 2nd number: 1 20/70
7/10 - 90/70 is -41/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 10 × 7 = 70,
7/10 = 7 × 7/10 × 7 = 49/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
90/70 = 90 × 1/70 × 1 = 90/70 - Subtract the two like fractions:
49/70 - 90/70 = 49 - 90/70 = -41/70
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