Subtract 12/40 from 36/70
36/70 - 12/40 is 3/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
36/70 = 36 × 4/70 × 4 = 144/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
12/40 = 12 × 7/40 × 7 = 84/280 - Subtract the two like fractions:
144/280 - 84/280 = 144 - 84/280 = 60/280 - After reducing the fraction, the answer is 3/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/70-12/40 36/70-24/40 36/70-12/80 36/70-36/40 36/70-60/40 36/70-84/40