Subtract 21/45 from 7/10
710 - 2145 is 730.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 10 × 9 = 90,
710 = 7 × 910 × 9 = 6390 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
2145 = 21 × 245 × 2 = 4290 - Subtract the two like fractions:
6390 - 4290 = 63 - 4290 = 2190 - After reducing the fraction, the answer is 730
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