Subtract 15/40 from 45/8
1st number: 5 5/8, 2nd number: 15/40
45/8 - 15/40 is 21/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
45/8 = 45 × 5/8 × 5 = 225/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
15/40 = 15 × 1/40 × 1 = 15/40 - Subtract the two like fractions:
225/40 - 15/40 = 225 - 15/40 = 210/40 - After reducing the fraction, the answer is 21/4
- In mixed form: 51/4
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