Subtract 3/40 from 42/32
1st number: 1 10/32, 2nd number: 3/40
42/32 - 3/40 is 99/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 40 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 32 × 5 = 160,
42/32 = 42 × 5/32 × 5 = 210/160 - Likewise, for the 2nd fraction, since 40 × 4 = 160,
3/40 = 3 × 4/40 × 4 = 12/160 - Subtract the two like fractions:
210/160 - 12/160 = 210 - 12/160 = 198/160 - After reducing the fraction, the answer is 99/80
- In mixed form: 119/80
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