Add 90/20 and 60/75
1st number: 4 10/20, 2nd number: 60/75
90/20 + 60/75 is 53/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 75 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 20 × 15 = 300,
90/20 = 90 × 15/20 × 15 = 1350/300 - Likewise, for the 2nd fraction, since 75 × 4 = 300,
60/75 = 60 × 4/75 × 4 = 240/300 - Add the two like fractions:
1350/300 + 240/300 = 1350 + 240/300 = 1590/300 - 1590/300 simplified gives 53/10
- So, 90/20 + 60/75 = 53/10
In mixed form: 53/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/40+60/75 90/60+60/75