Subtract 10/40 from 30/7
1st number: 4 2/7, 2nd number: 10/40
30/7 - 10/40 is 113/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 7 × 40 = 280,
30/7 = 30 × 40/7 × 40 = 1200/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
10/40 = 10 × 7/40 × 7 = 70/280 - Subtract the two like fractions:
1200/280 - 70/280 = 1200 - 70/280 = 1130/280 - After reducing the fraction, the answer is 113/28
- In mixed form: 41/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/7-10/40 30/7-20/40 30/14-10/40 30/7-10/80 90/7-10/40 30/7-30/40 30/21-10/40 30/7-50/40 30/35-10/40 30/7-70/40 30/49-10/40