Subtract 70/60 from 12/27
1st number: 12/27, 2nd number: 1 10/60
12/27 - 70/60 is -13/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 60 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 27 × 20 = 540,
12/27 = 12 × 20/27 × 20 = 240/540 - Likewise, for the 2nd fraction, since 60 × 9 = 540,
70/60 = 70 × 9/60 × 9 = 630/540 - Subtract the two like fractions:
240/540 - 630/540 = 240 - 630/540 = -390/540 - After reducing the fraction, the answer is -13/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/27-70/60 12/54-70/60 36/27-70/60 12/81-70/60 60/27-70/60 84/27-70/60