Add 45/48 and 16/20
45/48 + 16/20 is 139/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 20 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
45/48 = 45 × 5/48 × 5 = 225/240 - Likewise, for the 2nd fraction, since 20 × 12 = 240,
16/20 = 16 × 12/20 × 12 = 192/240 - Add the two like fractions:
225/240 + 192/240 = 225 + 192/240 = 417/240 - 417/240 simplified gives 139/80
- So, 45/48 + 16/20 = 139/80
In mixed form: 159/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/48+16/20 45/48+32/20 45/96+16/20 45/48+16/40 45/48+48/20 45/48+16/60 45/48+80/20