Add 20/25 and 4/40
20/25 + 4/40 is 9/10.
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,
4/40 = 4 × 5/40 × 5 = 20/200 - Add the two like fractions:
160/200 + 20/200 = 160 + 20/200 = 180/200 - 180/200 simplified gives 9/10
- So, 20/25 + 4/40 = 9/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/25+4/40 20/25+8/40 20/50+4/40 20/25+4/80 60/25+4/40 20/25+12/40 20/75+4/40 20/25+20/40 20/25+28/40