Subtract 10/30 from 70/7
1st number: 10 0/7, 2nd number: 10/30
70/7 - 10/30 is 29/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 7 × 30 = 210,
70/7 = 70 × 30/7 × 30 = 2100/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
10/30 = 10 × 7/30 × 7 = 70/210 - Subtract the two like fractions:
2100/210 - 70/210 = 2100 - 70/210 = 2030/210 - After reducing the fraction, the answer is 29/3
- In mixed form: 92/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/7-20/30 70/14-10/30 70/7-10/60 70/21-10/30 70/7-10/90 70/7-50/30 70/35-10/30 70/7-70/30 70/49-10/30