Subtract 42/12 from 90/50
1st number: 1 40/50, 2nd number: 3 6/12
90/50 - 42/12 is -17/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 12 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 50 × 6 = 300,
90/50 = 90 × 6/50 × 6 = 540/300 - Likewise, for the 2nd fraction, since 12 × 25 = 300,
42/12 = 42 × 25/12 × 25 = 1050/300 - Subtract the two like fractions:
540/300 - 1050/300 = 540 - 1050/300 = -510/300 - After reducing the fraction, the answer is -17/10
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