Subtract 21/9 from 56/8
1st number: 7 0/8, 2nd number: 2 3/9
56/8 - 21/9 is 14/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
56/8 = 56 × 9/8 × 9 = 504/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
21/9 = 21 × 8/9 × 8 = 168/72 - Subtract the two like fractions:
504/72 - 168/72 = 504 - 168/72 = 336/72 - After reducing the fraction, the answer is 14/3
- In mixed form: 42/3
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