Subtract 28/5 from 12/70
1st number: 12/70, 2nd number: 5 3/5
12/70 - 28/5 is -38/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 5 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
12/70 = 12 × 1/70 × 1 = 12/70 - Likewise, for the 2nd fraction, since 5 × 14 = 70,
28/5 = 28 × 14/5 × 14 = 392/70 - Subtract the two like fractions:
12/70 - 392/70 = 12 - 392/70 = -380/70 - After reducing the fraction, the answer is -38/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/70-28/5 12/70-56/5 12/70-28/10 36/70-28/5 12/70-84/5 12/70-28/15 60/70-28/5 12/70-28/25 84/70-28/5 12/70-28/35