Subtract 42/30 from 8/7
1st number: 1 1/7, 2nd number: 1 12/30
8/7 - 42/30 is -9/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 7 × 30 = 210,
8/7 = 8 × 30/7 × 30 = 240/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
42/30 = 42 × 7/30 × 7 = 294/210 - Subtract the two like fractions:
240/210 - 294/210 = 240 - 294/210 = -54/210 - After reducing the fraction, the answer is -9/35
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