Subtract 42/18 from 90/25
1st number: 3 15/25, 2nd number: 2 6/18
90/25 - 42/18 is 19/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 18 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 25 × 18 = 450,
90/25 = 90 × 18/25 × 18 = 1620/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
42/18 = 42 × 25/18 × 25 = 1050/450 - Subtract the two like fractions:
1620/450 - 1050/450 = 1620 - 1050/450 = 570/450 - After reducing the fraction, the answer is 19/15
- In mixed form: 14/15
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