Subtract 9/42 from 7/5
1st number: 1 2/5, 2nd number: 9/42
7/5 - 9/42 is 83/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 5 × 42 = 210,
7/5 = 7 × 42/5 × 42 = 294/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
9/42 = 9 × 5/42 × 5 = 45/210 - Subtract the two like fractions:
294/210 - 45/210 = 294 - 45/210 = 249/210 - After reducing the fraction, the answer is 83/70
- In mixed form: 113/70
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