Subtract 42/80 from 9/5
1st number: 1 4/5, 2nd number: 42/80
9/5 - 42/80 is 51/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
9/5 = 9 × 16/5 × 16 = 144/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
42/80 = 42 × 1/80 × 1 = 42/80 - Subtract the two like fractions:
144/80 - 42/80 = 144 - 42/80 = 102/80 - After reducing the fraction, the answer is 51/40
- In mixed form: 111/40
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