Subtract 7/30 from 40/10
1st number: 4 0/10, 2nd number: 7/30
40/10 - 7/30 is 113/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
40/10 = 40 × 3/10 × 3 = 120/30 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
7/30 = 7 × 1/30 × 1 = 7/30 - Subtract the two like fractions:
120/30 - 7/30 = 120 - 7/30 = 113/30 - In mixed form: 323/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/10-7/30 40/10-14/30 40/20-7/30 40/10-7/60 40/10-21/30 40/30-7/30 40/10-7/90 40/10-35/30 40/50-7/30 40/10-49/30 40/70-7/30