Subtract 28/70 from 7/12
7/12 - 28/70 is 11/60.
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,
7/12 = 7 × 35/12 × 35 = 245/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
28/70 = 28 × 6/70 × 6 = 168/420 - Subtract the two like fractions:
245/420 - 168/420 = 245 - 168/420 = 77/420 - After reducing the fraction, the answer is 11/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/12-28/70 7/12-56/70 7/24-28/70 21/12-28/70 7/12-84/70 7/36-28/70 35/12-28/70 7/60-28/70 49/12-28/70 7/84-28/70