Subtract 70/7 from 30/25
1st number: 1 5/25, 2nd number: 10 0/7
30/25 - 70/7 is -44/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 7 is 175
Next, find the equivalent fraction of both fractional numbers with denominator 175 - For the 1st fraction, since 25 × 7 = 175,
30/25 = 30 × 7/25 × 7 = 210/175 - Likewise, for the 2nd fraction, since 7 × 25 = 175,
70/7 = 70 × 25/7 × 25 = 1750/175 - Subtract the two like fractions:
210/175 - 1750/175 = 210 - 1750/175 = -1540/175 - After reducing the fraction, the answer is -44/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/25-70/7 30/50-70/7 30/25-70/14 90/25-70/7 30/75-70/7 30/25-70/21 30/25-70/35 30/25-70/49