Subtract 4/21 from 45/12
1st number: 3 9/12, 2nd number: 4/21
4512 - 421 is 29984.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 21 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
4512 = 45 × 712 × 7 = 31584 - Likewise, for the 2nd fraction, since 21 × 4 = 84,
421 = 4 × 421 × 4 = 1684 - Subtract the two like fractions:
31584 - 1684 = 315 - 1684 = 29984 - In mixed form: 34784
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