Subtract 9/21 from 21/80
2180 - 921 is -93560.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 21 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 80 × 21 = 1680,
2180 = 21 × 2180 × 21 = 4411680 - Likewise, for the 2nd fraction, since 21 × 80 = 1680,
921 = 9 × 8021 × 80 = 7201680 - Subtract the two like fractions:
4411680 - 7201680 = 441 - 7201680 = -2791680 - After reducing the fraction, the answer is -93560
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