Add 75/80 and 40/60
75/80 + 40/60 is 77/48.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 60 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
75/80 = 75 × 3/80 × 3 = 225/240 - Likewise, for the 2nd fraction, since 60 × 4 = 240,
40/60 = 40 × 4/60 × 4 = 160/240 - Add the two like fractions:
225/240 + 160/240 = 225 + 160/240 = 385/240 - 385/240 simplified gives 77/48
- So, 75/80 + 40/60 = 77/48
In mixed form: 129/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/80+80/60