Add 20/40 and 60/75
20/40 + 60/75 is 13/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 75 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 40 × 15 = 600,
20/40 = 20 × 15/40 × 15 = 300/600 - Likewise, for the 2nd fraction, since 75 × 8 = 600,
60/75 = 60 × 8/75 × 8 = 480/600 - Add the two like fractions:
300/600 + 480/600 = 300 + 480/600 = 780/600 - 780/600 simplified gives 13/10
- So, 20/40 + 60/75 = 13/10
In mixed form: 13/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/80+60/75 60/40+60/75