Add 10/60 and 70/90
10/60 + 70/90 is 17/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
10/60 = 10 × 3/60 × 3 = 30/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
70/90 = 70 × 2/90 × 2 = 140/180 - Add the two like fractions:
30/180 + 140/180 = 30 + 140/180 = 170/180 - 170/180 simplified gives 17/18
- So, 10/60 + 70/90 = 17/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/60+70/90 30/60+70/90 50/60+70/90 70/60+70/90