Subtract 72/7 from 98/30
1st number: 3 8/30, 2nd number: 10 2/7
98/30 - 72/7 is -737/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 7 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
98/30 = 98 × 7/30 × 7 = 686/210 - Likewise, for the 2nd fraction, since 7 × 30 = 210,
72/7 = 72 × 30/7 × 30 = 2160/210 - Subtract the two like fractions:
686/210 - 2160/210 = 686 - 2160/210 = -1474/210 - After reducing the fraction, the answer is -737/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/60-72/7 98/30-72/14 98/90-72/7 98/30-72/21 98/30-72/35 98/30-72/49