Subtract 21/40 from 45/14
1st number: 3 3/14, 2nd number: 21/40
45/14 - 21/40 is 753/280.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 14 × 20 = 280,
45/14 = 45 × 20/14 × 20 = 900/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
21/40 = 21 × 7/40 × 7 = 147/280 - Subtract the two like fractions:
900/280 - 147/280 = 900 - 147/280 = 753/280 - In mixed form: 2193/280
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