Add 20/25 and 49/40
1st number: 20/25, 2nd number: 1 9/40
20/25 + 49/40 is 81/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 40 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 25 × 8 = 200,
20/25 = 20 × 8/25 × 8 = 160/200 - Likewise, for the 2nd fraction, since 40 × 5 = 200,
49/40 = 49 × 5/40 × 5 = 245/200 - Add the two like fractions:
160/200 + 245/200 = 160 + 245/200 = 405/200 - 405/200 simplified gives 81/40
- So, 20/25 + 49/40 = 81/40
In mixed form: 21/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/25+49/40 20/25+98/40 20/50+49/40 20/25+49/80 60/25+49/40 20/75+49/40