Subtract 70/30 from 40/60
1st number: 40/60, 2nd number: 2 10/30
40/60 - 70/30 is -5/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 60 × 1 = 60,
40/60 = 40 × 1/60 × 1 = 40/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
70/30 = 70 × 2/30 × 2 = 140/60 - Subtract the two like fractions:
40/60 - 140/60 = 40 - 140/60 = -100/60 - After reducing the fraction, the answer is -5/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/60-70/30 40/60-70/60 40/60-70/90