Subtract 4/21 from 4/5
45 - 421 is 64105.
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,
421 = 4 × 521 × 5 = 20105 - Subtract the two like fractions:
84105 - 20105 = 84 - 20105 = 64105
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