Add 18/60 and 70/45
1st number: 18/60, 2nd number: 1 25/45
18/60 + 70/45 is 167/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
18/60 = 18 × 3/60 × 3 = 54/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
70/45 = 70 × 4/45 × 4 = 280/180 - Add the two like fractions:
54/180 + 280/180 = 54 + 280/180 = 334/180 - 334/180 simplified gives 167/90
- So, 18/60 + 70/45 = 167/90
In mixed form: 177/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/60+70/45 18/60+70/90 54/60+70/45 90/60+70/45