Subtract 28/14 from 21/45
1st number: 21/45, 2nd number: 2 0/14
21/45 - 28/14 is -23/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 14 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
21/45 = 21 × 14/45 × 14 = 294/630 - Likewise, for the 2nd fraction, since 14 × 45 = 630,
28/14 = 28 × 45/14 × 45 = 1260/630 - Subtract the two like fractions:
294/630 - 1260/630 = 294 - 1260/630 = -966/630 - After reducing the fraction, the answer is -23/15
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