Add 20/4 and 24/90
1st number: 5 0/4, 2nd number: 24/90
20/4 + 24/90 is 79/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
20/4 = 20 × 45/4 × 45 = 900/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
24/90 = 24 × 2/90 × 2 = 48/180 - Add the two like fractions:
900/180 + 48/180 = 900 + 48/180 = 948/180 - 948/180 simplified gives 79/15
- So, 20/4 + 24/90 = 79/15
In mixed form: 54/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/4+24/90 20/4+48/90 20/8+24/90 60/4+24/90 20/4+72/90 20/12+24/90 20/28+24/90