Subtract 40/30 from 63/20
1st number: 3 3/20, 2nd number: 1 10/30
63/20 - 40/30 is 109/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
63/20 = 63 × 3/20 × 3 = 189/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
40/30 = 40 × 2/30 × 2 = 80/60 - Subtract the two like fractions:
189/60 - 80/60 = 189 - 80/60 = 109/60 - In mixed form: 149/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/20-80/30 63/40-40/30 63/20-40/60 63/60-40/30 63/20-40/90