Subtract 18/20 from 63/30
1st number: 2 3/30, 2nd number: 18/20
63/30 - 18/20 is 6/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
63/30 = 63 × 2/30 × 2 = 126/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
18/20 = 18 × 3/20 × 3 = 54/60 - Subtract the two like fractions:
126/60 - 54/60 = 126 - 54/60 = 72/60 - After reducing the fraction, the answer is 6/5
- In mixed form: 11/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/30-36/20 63/60-18/20 63/30-18/40 63/30-54/20 63/90-18/20 63/30-18/60 63/30-90/20