Subtract 42/70 from 9/8
1st number: 1 1/8, 2nd number: 42/70
9/8 - 42/70 is 21/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 8 × 35 = 280,
9/8 = 9 × 35/8 × 35 = 315/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
42/70 = 42 × 4/70 × 4 = 168/280 - Subtract the two like fractions:
315/280 - 168/280 = 315 - 168/280 = 147/280 - After reducing the fraction, the answer is 21/40
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