Add 60/80 and 36/90
60/80 + 36/90 is 23/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
60/80 = 60 × 9/80 × 9 = 540/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
36/90 = 36 × 8/90 × 8 = 288/720 - Add the two like fractions:
540/720 + 288/720 = 540 + 288/720 = 828/720 - 828/720 simplified gives 23/20
- So, 60/80 + 36/90 = 23/20
In mixed form: 13/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/80+72/90