Add 60/4 and 81/90
1st number: 15 0/4, 2nd number: 81/90
60/4 + 81/90 is 159/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
60/4 = 60 × 45/4 × 45 = 2700/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
81/90 = 81 × 2/90 × 2 = 162/180 - Add the two like fractions:
2700/180 + 162/180 = 2700 + 162/180 = 2862/180 - 2862/180 simplified gives 159/10
- So, 60/4 + 81/90 = 159/10
In mixed form: 159/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/8+81/90 60/12+81/90 60/20+81/90 60/28+81/90