Subtract 4/15 from 10/21
1021 - 415 is 22105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 15 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
1021 = 10 × 521 × 5 = 50105 - Likewise, for the 2nd fraction, since 15 × 7 = 105,
415 = 4 × 715 × 7 = 28105 - Subtract the two like fractions:
50105 - 28105 = 50 - 28105 = 22105
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