Subtract 40/15 from 7/70
1st number: 7/70, 2nd number: 2 10/15
7/70 - 40/15 is -77/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
7/70 = 7 × 3/70 × 3 = 21/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
40/15 = 40 × 14/15 × 14 = 560/210 - Subtract the two like fractions:
21/210 - 560/210 = 21 - 560/210 = -539/210 - After reducing the fraction, the answer is -77/30
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