Subtract 56/70 from 7/30
7/30 - 56/70 is -17/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
7/30 = 7 × 7/30 × 7 = 49/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
56/70 = 56 × 3/70 × 3 = 168/210 - Subtract the two like fractions:
49/210 - 168/210 = 49 - 168/210 = -119/210 - After reducing the fraction, the answer is -17/30
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