Add 10/25 and 30/40
10/25 + 30/40 is 23/20.
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,
10/25 = 10 × 8/25 × 8 = 80/200 - Likewise, for the 2nd fraction, since 40 × 5 = 200,
30/40 = 30 × 5/40 × 5 = 150/200 - Add the two like fractions:
80/200 + 150/200 = 80 + 150/200 = 230/200 - 230/200 simplified gives 23/20
- So, 10/25 + 30/40 = 23/20
In mixed form: 13/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/25+30/40 10/25+60/40 10/50+30/40 10/25+30/80 30/25+30/40 10/25+90/40 10/75+30/40 50/25+30/40 70/25+30/40