Subtract 20/27 from 21/8
1st number: 2 5/8, 2nd number: 20/27
21/8 - 20/27 is 407/216.
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,
21/8 = 21 × 27/8 × 27 = 567/216 - Likewise, for the 2nd fraction, since 27 × 8 = 216,
20/27 = 20 × 8/27 × 8 = 160/216 - Subtract the two like fractions:
567/216 - 160/216 = 567 - 160/216 = 407/216 - In mixed form: 1191/216
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