Subtract 42/90 from 40/5
1st number: 8 0/5, 2nd number: 42/90
40/5 - 42/90 is 113/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
40/5 = 40 × 18/5 × 18 = 720/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
42/90 = 42 × 1/90 × 1 = 42/90 - Subtract the two like fractions:
720/90 - 42/90 = 720 - 42/90 = 678/90 - After reducing the fraction, the answer is 113/15
- In mixed form: 78/15
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