Subtract 9/90 from 42/25
1st number: 1 17/25, 2nd number: 9/90
42/25 - 9/90 is 79/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 25 × 18 = 450,
42/25 = 42 × 18/25 × 18 = 756/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
9/90 = 9 × 5/90 × 5 = 45/450 - Subtract the two like fractions:
756/450 - 45/450 = 756 - 45/450 = 711/450 - After reducing the fraction, the answer is 79/50
- In mixed form: 129/50
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