Add 40/25 and 28/20
1st number: 1 15/25, 2nd number: 1 8/20
40/25 + 28/20 is 3/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 20 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 25 × 4 = 100,
40/25 = 40 × 4/25 × 4 = 160/100 - Likewise, for the 2nd fraction, since 20 × 5 = 100,
28/20 = 28 × 5/20 × 5 = 140/100 - Add the two like fractions:
160/100 + 140/100 = 160 + 140/100 = 300/100 - 300/100 simplified gives 3/1
- So, 40/25 + 28/20 = 3/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/25+28/20 40/25+56/20 40/50+28/20 40/25+28/40 40/25+84/20 40/75+28/20 40/25+28/60