Subtract 15/24 from 21/5
1st number: 4 1/5, 2nd number: 15/24
21/5 - 15/24 is 143/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 5 × 24 = 120,
21/5 = 21 × 24/5 × 24 = 504/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
15/24 = 15 × 5/24 × 5 = 75/120 - Subtract the two like fractions:
504/120 - 75/120 = 504 - 75/120 = 429/120 - After reducing the fraction, the answer is 143/40
- In mixed form: 323/40
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