Subtract 50/7 from 7/30
1st number: 7/30, 2nd number: 7 1/7
7/30 - 50/7 is -1451/210.
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,
7/30 = 7 × 7/30 × 7 = 49/210 - Likewise, for the 2nd fraction, since 7 × 30 = 210,
50/7 = 50 × 30/7 × 30 = 1500/210 - Subtract the two like fractions:
49/210 - 1500/210 = 49 - 1500/210 = -1451/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/30-50/7 7/60-50/7 7/30-50/14 21/30-50/7 7/90-50/7 7/30-50/21 35/30-50/7 7/30-50/35 49/30-50/7 7/30-50/49