Add 60/72 and 2/90
60/72 + 2/90 is 77/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
60/72 = 60 × 5/72 × 5 = 300/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
2/90 = 2 × 4/90 × 4 = 8/360 - Add the two like fractions:
300/360 + 8/360 = 300 + 8/360 = 308/360 - 308/360 simplified gives 77/90
- So, 60/72 + 2/90 = 77/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/72+4/90 60/72+6/90 60/72+10/90 60/72+14/90