Subtract 28/45 from 56/21
1st number: 2 14/21, 2nd number: 28/45
56/21 - 28/45 is 92/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 21 × 15 = 315,
56/21 = 56 × 15/21 × 15 = 840/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
28/45 = 28 × 7/45 × 7 = 196/315 - Subtract the two like fractions:
840/315 - 196/315 = 840 - 196/315 = 644/315 - After reducing the fraction, the answer is 92/45
- In mixed form: 22/45
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