Subtract 21/54 from 28/8
1st number: 3 4/8, 2nd number: 21/54
28/8 - 21/54 is 28/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 54 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 8 × 27 = 216,
28/8 = 28 × 27/8 × 27 = 756/216 - Likewise, for the 2nd fraction, since 54 × 4 = 216,
21/54 = 21 × 4/54 × 4 = 84/216 - Subtract the two like fractions:
756/216 - 84/216 = 756 - 84/216 = 672/216 - After reducing the fraction, the answer is 28/9
- In mixed form: 31/9
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