Subtract 90/20 from 42/50
1st number: 42/50, 2nd number: 4 10/20
42/50 - 90/20 is -183/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 20 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 50 × 2 = 100,
42/50 = 42 × 2/50 × 2 = 84/100 - Likewise, for the 2nd fraction, since 20 × 5 = 100,
90/20 = 90 × 5/20 × 5 = 450/100 - Subtract the two like fractions:
84/100 - 450/100 = 84 - 450/100 = -366/100 - After reducing the fraction, the answer is -183/50
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