Subtract 12/24 from 40/70
40/70 - 12/24 is 1/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 24 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 70 × 12 = 840,
40/70 = 40 × 12/70 × 12 = 480/840 - Likewise, for the 2nd fraction, since 24 × 35 = 840,
12/24 = 12 × 35/24 × 35 = 420/840 - Subtract the two like fractions:
480/840 - 420/840 = 480 - 420/840 = 60/840 - After reducing the fraction, the answer is 1/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/70-12/24 40/70-12/48 40/70-36/24 40/70-12/72 40/70-60/24 40/70-84/24