Subtract 98/54 from 42/20
1st number: 2 2/20, 2nd number: 1 44/54
42/20 - 98/54 is 77/270.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 54 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 20 × 27 = 540,
42/20 = 42 × 27/20 × 27 = 1134/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
98/54 = 98 × 10/54 × 10 = 980/540 - Subtract the two like fractions:
1134/540 - 980/540 = 1134 - 980/540 = 154/540 - After reducing the fraction, the answer is 77/270
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/20-98/54 42/40-98/54 42/60-98/54