Subtract 40/15 from 30/8
1st number: 3 6/8, 2nd number: 2 10/15
30/8 - 40/15 is 13/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
30/8 = 30 × 15/8 × 15 = 450/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
40/15 = 40 × 8/15 × 8 = 320/120 - Subtract the two like fractions:
450/120 - 320/120 = 450 - 320/120 = 130/120 - After reducing the fraction, the answer is 13/12
- In mixed form: 11/12
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