Add 12/90 and 70/60
1st number: 12/90, 2nd number: 1 10/60
12/90 + 70/60 is 13/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
12/90 = 12 × 2/90 × 2 = 24/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
70/60 = 70 × 3/60 × 3 = 210/180 - Add the two like fractions:
24/180 + 210/180 = 24 + 210/180 = 234/180 - 234/180 simplified gives 13/10
- So, 12/90 + 70/60 = 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: 24/90+70/60 36/90+70/60 60/90+70/60 84/90+70/60