Subtract 12/70 from 40/50
40/50 - 12/70 is 22/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 70 is 350
Next, find the equivalent fraction of both fractional numbers with denominator 350 - For the 1st fraction, since 50 × 7 = 350,
40/50 = 40 × 7/50 × 7 = 280/350 - Likewise, for the 2nd fraction, since 70 × 5 = 350,
12/70 = 12 × 5/70 × 5 = 60/350 - Subtract the two like fractions:
280/350 - 60/350 = 280 - 60/350 = 220/350 - After reducing the fraction, the answer is 22/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/50-12/70 40/50-24/70 40/50-36/70 40/50-60/70 40/50-84/70