Subtract 18/72 from 63/30
1st number: 2 3/30, 2nd number: 18/72
63/30 - 18/72 is 37/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 30 × 12 = 360,
63/30 = 63 × 12/30 × 12 = 756/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
18/72 = 18 × 5/72 × 5 = 90/360 - Subtract the two like fractions:
756/360 - 90/360 = 756 - 90/360 = 666/360 - After reducing the fraction, the answer is 37/20
- In mixed form: 117/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/30-36/72 63/60-18/72 63/30-54/72 63/90-18/72 63/30-90/72