Subtract 6/27 from 4/21
421 - 627 is -263.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 21 × 9 = 189,
421 = 4 × 921 × 9 = 36189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
627 = 6 × 727 × 7 = 42189 - Subtract the two like fractions:
36189 - 42189 = 36 - 42189 = -6189 - After reducing the fraction, the answer is -263
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