Subtract 18/30 from 40/4
1st number: 10 0/4, 2nd number: 18/30
40/4 - 18/30 is 47/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
40/4 = 40 × 15/4 × 15 = 600/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
18/30 = 18 × 2/30 × 2 = 36/60 - Subtract the two like fractions:
600/60 - 36/60 = 600 - 36/60 = 564/60 - After reducing the fraction, the answer is 47/5
- In mixed form: 92/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/4-18/30 40/4-36/30 40/8-18/30 40/4-18/60 40/4-54/30 40/12-18/30 40/4-18/90 40/4-90/30 40/20-18/30 40/28-18/30