Add 10/20 and 90/75
1st number: 10/20, 2nd number: 1 15/75
10/20 + 90/75 is 17/10.
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,
10/20 = 10 × 15/20 × 15 = 150/300 - Likewise, for the 2nd fraction, since 75 × 4 = 300,
90/75 = 90 × 4/75 × 4 = 360/300 - Add the two like fractions:
150/300 + 360/300 = 150 + 360/300 = 510/300 - 510/300 simplified gives 17/10
- So, 10/20 + 90/75 = 17/10
In mixed form: 17/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/40+90/75 30/20+90/75 10/60+90/75 50/20+90/75 70/20+90/75