Subtract 63/70 from 28/12
1st number: 2 4/12, 2nd number: 63/70
28/12 - 63/70 is 43/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 12 × 35 = 420,
28/12 = 28 × 35/12 × 35 = 980/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
63/70 = 63 × 6/70 × 6 = 378/420 - Subtract the two like fractions:
980/420 - 378/420 = 980 - 378/420 = 602/420 - After reducing the fraction, the answer is 43/30
- In mixed form: 113/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/12-63/70 28/24-63/70 84/12-63/70 28/36-63/70 28/60-63/70 28/84-63/70