Subtract 30/8 from 70/28
1st number: 2 14/28, 2nd number: 3 6/8
70/28 - 30/8 is -5/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 28 × 2 = 56,
70/28 = 70 × 2/28 × 2 = 140/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
30/8 = 30 × 7/8 × 7 = 210/56 - Subtract the two like fractions:
140/56 - 210/56 = 140 - 210/56 = -70/56 - After reducing the fraction, the answer is -5/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/28-60/8 70/56-30/8 70/28-30/16 70/28-90/8 70/84-30/8 70/28-30/24 70/28-30/40 70/28-30/56