Subtract 7/90 from 42/18
1st number: 2 6/18, 2nd number: 7/90
42/18 - 7/90 is 203/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
42/18 = 42 × 5/18 × 5 = 210/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
7/90 = 7 × 1/90 × 1 = 7/90 - Subtract the two like fractions:
210/90 - 7/90 = 210 - 7/90 = 203/90 - In mixed form: 223/90
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