Subtract 30/28 from 70/10
1st number: 7 0/10, 2nd number: 1 2/28
70/10 - 30/28 is 83/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 10 × 14 = 140,
70/10 = 70 × 14/10 × 14 = 980/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
30/28 = 30 × 5/28 × 5 = 150/140 - Subtract the two like fractions:
980/140 - 150/140 = 980 - 150/140 = 830/140 - After reducing the fraction, the answer is 83/14
- In mixed form: 513/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/10-60/28 70/20-30/28 70/10-30/56 70/10-90/28 70/30-30/28 70/10-30/84 70/50-30/28