Subtract 2/3 from 15/70
15/70 - 2/3 is -19/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 3 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
15/70 = 15 × 3/70 × 3 = 45/210 - Likewise, for the 2nd fraction, since 3 × 70 = 210,
2/3 = 2 × 70/3 × 70 = 140/210 - Subtract the two like fractions:
45/210 - 140/210 = 45 - 140/210 = -95/210 - After reducing the fraction, the answer is -19/42
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