Subtract 45/4 from 42/40
1st number: 1 2/40, 2nd number: 11 1/4
42/40 - 45/4 is -51/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 4 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
42/40 = 42 × 1/40 × 1 = 42/40 - Likewise, for the 2nd fraction, since 4 × 10 = 40,
45/4 = 45 × 10/4 × 10 = 450/40 - Subtract the two like fractions:
42/40 - 450/40 = 42 - 450/40 = -408/40 - After reducing the fraction, the answer is -51/5
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