Add 45/80 and 30/48
45/80 + 30/48 is 19/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
45/80 = 45 × 3/80 × 3 = 135/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
30/48 = 30 × 5/48 × 5 = 150/240 - Add the two like fractions:
135/240 + 150/240 = 135 + 150/240 = 285/240 - 285/240 simplified gives 19/16
- So, 45/80 + 30/48 = 19/16
In mixed form: 13/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/80+30/48 45/80+60/48 45/80+30/96 45/80+90/48