Add 20/75 and 90/30
1st number: 20/75, 2nd number: 3 0/30
20/75 + 90/30 is 49/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 30 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 75 × 2 = 150,
20/75 = 20 × 2/75 × 2 = 40/150 - Likewise, for the 2nd fraction, since 30 × 5 = 150,
90/30 = 90 × 5/30 × 5 = 450/150 - Add the two like fractions:
40/150 + 450/150 = 40 + 450/150 = 490/150 - 490/150 simplified gives 49/15
- So, 20/75 + 90/30 = 49/15
In mixed form: 34/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/75+90/30 20/75+90/60 60/75+90/30