Subtract 3/90 from 42/36
1st number: 1 6/36, 2nd number: 3/90
42/36 - 3/90 is 17/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
42/36 = 42 × 5/36 × 5 = 210/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
3/90 = 3 × 2/90 × 2 = 6/180 - Subtract the two like fractions:
210/180 - 6/180 = 210 - 6/180 = 204/180 - After reducing the fraction, the answer is 17/15
- In mixed form: 12/15
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