Subtract 21/27 from 27/8
1st number: 3 3/8, 2nd number: 21/27
27/8 - 21/27 is 187/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 27 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 8 × 27 = 216,
27/8 = 27 × 27/8 × 27 = 729/216 - Likewise, for the 2nd fraction, since 27 × 8 = 216,
21/27 = 21 × 8/27 × 8 = 168/216 - Subtract the two like fractions:
729/216 - 168/216 = 729 - 168/216 = 561/216 - After reducing the fraction, the answer is 187/72
- In mixed form: 243/72
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