Subtract 70/4 from 28/9
1st number: 3 1/9, 2nd number: 17 2/4
28/9 - 70/4 is -259/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
28/9 = 28 × 4/9 × 4 = 112/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
70/4 = 70 × 9/4 × 9 = 630/36 - Subtract the two like fractions:
112/36 - 630/36 = 112 - 630/36 = -518/36 - After reducing the fraction, the answer is -259/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/9-70/4 28/18-70/4 28/9-70/8 84/9-70/4 28/27-70/4 28/9-70/12 28/45-70/4 28/9-70/20 28/63-70/4 28/9-70/28