Subtract 18/45 from 16/12
1st number: 1 4/12, 2nd number: 18/45
16/12 - 18/45 is 14/15.
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,
16/12 = 16 × 15/12 × 15 = 240/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
18/45 = 18 × 4/45 × 4 = 72/180 - Subtract the two like fractions:
240/180 - 72/180 = 240 - 72/180 = 168/180 - After reducing the fraction, the answer is 14/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/12-18/45 16/12-36/45 16/24-18/45 16/12-18/90 48/12-18/45 16/12-54/45 16/36-18/45 80/12-18/45 16/12-90/45 16/60-18/45 16/84-18/45