Subtract 30/7 from 14/8
1st number: 1 6/8, 2nd number: 4 2/7
14/8 - 30/7 is -71/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 7 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
14/8 = 14 × 7/8 × 7 = 98/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
30/7 = 30 × 8/7 × 8 = 240/56 - Subtract the two like fractions:
98/56 - 240/56 = 98 - 240/56 = -142/56 - After reducing the fraction, the answer is -71/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/8-30/7 14/8-60/7 14/16-30/7 14/8-30/14 42/8-30/7 14/8-90/7 14/24-30/7 14/8-30/21 70/8-30/7 14/40-30/7 14/8-30/35 98/8-30/7 14/56-30/7 14/8-30/49