Subtract 4/21 from 54/2
1st number: 27 0/2, 2nd number: 4/21
54/2 - 4/21 is 563/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
54/2 = 54 × 21/2 × 21 = 1134/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
4/21 = 4 × 2/21 × 2 = 8/42 - Subtract the two like fractions:
1134/42 - 8/42 = 1134 - 8/42 = 1126/42 - After reducing the fraction, the answer is 563/21
- In mixed form: 2617/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/2-8/21 54/4-4/21 54/2-4/42 54/2-12/21 54/6-4/21 54/2-4/63 54/2-20/21 54/10-4/21 54/2-28/21 54/14-4/21