Subtract 30/20 from 98/42
1st number: 2 14/42, 2nd number: 1 10/20
98/42 - 30/20 is 5/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,
98/42 = 98 × 10/42 × 10 = 980/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
30/20 = 30 × 21/20 × 21 = 630/420 - Subtract the two like fractions:
980/420 - 630/420 = 980 - 630/420 = 350/420 - After reducing the fraction, the answer is 5/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/42-60/20 98/84-30/20 98/42-30/40 98/42-90/20 98/42-30/60