Subtract 21/27 from 7/8
78 - 2127 is 772.
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,
78 = 7 × 278 × 27 = 189216 - Likewise, for the 2nd fraction, since 27 × 8 = 216,
2127 = 21 × 827 × 8 = 168216 - Subtract the two like fractions:
189216 - 168216 = 189 - 168216 = 21216 - After reducing the fraction, the answer is 772
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