Subtract 20/30 from 45/16
1st number: 2 13/16, 2nd number: 20/30
45/16 - 20/30 is 103/48.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 30 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 16 × 15 = 240,
45/16 = 45 × 15/16 × 15 = 675/240 - Likewise, for the 2nd fraction, since 30 × 8 = 240,
20/30 = 20 × 8/30 × 8 = 160/240 - Subtract the two like fractions:
675/240 - 160/240 = 675 - 160/240 = 515/240 - After reducing the fraction, the answer is 103/48
- In mixed form: 27/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/16-20/30 45/16-40/30 45/32-20/30 45/16-20/60 45/16-60/30 45/48-20/30 45/16-20/90 45/80-20/30