Subtract 42/5 from 40/45
1st number: 40/45, 2nd number: 8 2/5
40/45 - 42/5 is -338/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 5 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
40/45 = 40 × 1/45 × 1 = 40/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
42/5 = 42 × 9/5 × 9 = 378/45 - Subtract the two like fractions:
40/45 - 378/45 = 40 - 378/45 = -338/45
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