Subtract 9/21 from 4/5
45 - 921 is 1335.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 5 × 21 = 105,
45 = 4 × 215 × 21 = 84105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
921 = 9 × 521 × 5 = 45105 - Subtract the two like fractions:
84105 - 45105 = 84 - 45105 = 39105 - After reducing the fraction, the answer is 1335
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