Subtract 18/30 from 15/8
1st number: 1 7/8, 2nd number: 18/30
15/8 - 18/30 is 51/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
15/8 = 15 × 15/8 × 15 = 225/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
18/30 = 18 × 4/30 × 4 = 72/120 - Subtract the two like fractions:
225/120 - 72/120 = 225 - 72/120 = 153/120 - After reducing the fraction, the answer is 51/40
- In mixed form: 111/40
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