Subtract 98/90 from 42/60
1st number: 42/60, 2nd number: 1 8/90
42/60 - 98/90 is -7/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
42/60 = 42 × 3/60 × 3 = 126/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
98/90 = 98 × 2/90 × 2 = 196/180 - Subtract the two like fractions:
126/180 - 196/180 = 126 - 196/180 = -70/180 - After reducing the fraction, the answer is -7/18
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Related: 84/60-98/90