Subtract 3/70 from 98/20
1st number: 4 18/20, 2nd number: 3/70
98/20 - 3/70 is 34/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
98/20 = 98 × 7/20 × 7 = 686/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
3/70 = 3 × 2/70 × 2 = 6/140 - Subtract the two like fractions:
686/140 - 6/140 = 686 - 6/140 = 680/140 - After reducing the fraction, the answer is 34/7
- In mixed form: 46/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/20-6/70 98/40-3/70 98/20-9/70 98/60-3/70 98/20-15/70 98/20-21/70