Subtract 14/4 from 28/70
1st number: 28/70, 2nd number: 3 2/4
28/70 - 14/4 is -31/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 4 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
28/70 = 28 × 2/70 × 2 = 56/140 - Likewise, for the 2nd fraction, since 4 × 35 = 140,
14/4 = 14 × 35/4 × 35 = 490/140 - Subtract the two like fractions:
56/140 - 490/140 = 56 - 490/140 = -434/140 - After reducing the fraction, the answer is -31/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/70-14/4 28/70-28/4 28/70-14/8 84/70-14/4 28/70-42/4 28/70-14/12 28/70-70/4 28/70-14/20 28/70-98/4 28/70-14/28