Subtract 14/40 from 30/7
1st number: 4 2/7, 2nd number: 14/40
30/7 - 14/40 is 551/140.
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,
14/40 = 14 × 7/40 × 7 = 98/280 - Subtract the two like fractions:
1200/280 - 98/280 = 1200 - 98/280 = 1102/280 - After reducing the fraction, the answer is 551/140
- In mixed form: 3131/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/7-14/40 30/7-28/40 30/14-14/40 30/7-14/80 90/7-14/40 30/7-42/40 30/21-14/40 30/7-70/40 30/35-14/40 30/7-98/40 30/49-14/40