Subtract 15/10 from 7/70
1st number: 7/70, 2nd number: 1 5/10
7/70 - 15/10 is -7/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 10 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
7/70 = 7 × 1/70 × 1 = 7/70 - Likewise, for the 2nd fraction, since 10 × 7 = 70,
15/10 = 15 × 7/10 × 7 = 105/70 - Subtract the two like fractions:
7/70 - 105/70 = 7 - 105/70 = -98/70 - After reducing the fraction, the answer is -7/5
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