Add 90/45 and 18/60
1st number: 2 0/45, 2nd number: 18/60
90/45 + 18/60 is 23/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 60 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
90/45 = 90 × 4/45 × 4 = 360/180 - Likewise, for the 2nd fraction, since 60 × 3 = 180,
18/60 = 18 × 3/60 × 3 = 54/180 - Add the two like fractions:
360/180 + 54/180 = 360 + 54/180 = 414/180 - 414/180 simplified gives 23/10
- So, 90/45 + 18/60 = 23/10
In mixed form: 23/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/45+36/60 90/45+54/60 90/45+90/60