Subtract 63/45 from 18/12
1st number: 1 6/12, 2nd number: 1 18/45
18/12 - 63/45 is 1/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
18/12 = 18 × 15/12 × 15 = 270/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
63/45 = 63 × 4/45 × 4 = 252/180 - Subtract the two like fractions:
270/180 - 252/180 = 270 - 252/180 = 18/180 - After reducing the fraction, the answer is 1/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/12-63/45 18/24-63/45 18/12-63/90 54/12-63/45 18/36-63/45 90/12-63/45 18/60-63/45 18/84-63/45