Add 20/4 and 30/25
1st number: 5 0/4, 2nd number: 1 5/25
20/4 + 30/25 is 31/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 25 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 4 × 25 = 100,
20/4 = 20 × 25/4 × 25 = 500/100 - Likewise, for the 2nd fraction, since 25 × 4 = 100,
30/25 = 30 × 4/25 × 4 = 120/100 - Add the two like fractions:
500/100 + 120/100 = 500 + 120/100 = 620/100 - 620/100 simplified gives 31/5
- So, 20/4 + 30/25 = 31/5
In mixed form: 61/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/4+30/25 20/4+60/25 20/8+30/25 20/4+30/50 60/4+30/25 20/4+90/25 20/12+30/25 20/4+30/75 20/28+30/25