Subtract 18/5 from 42/50
1st number: 42/50, 2nd number: 3 3/5
42/50 - 18/5 is -69/25.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 5 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 50 × 1 = 50,
42/50 = 42 × 1/50 × 1 = 42/50 - Likewise, for the 2nd fraction, since 5 × 10 = 50,
18/5 = 18 × 10/5 × 10 = 180/50 - Subtract the two like fractions:
42/50 - 180/50 = 42 - 180/50 = -138/50 - After reducing the fraction, the answer is -69/25
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