Add 90/25 and 27/40
1st number: 3 15/25, 2nd number: 27/40
90/25 + 27/40 is 171/40.
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,
90/25 = 90 × 8/25 × 8 = 720/200 - Likewise, for the 2nd fraction, since 40 × 5 = 200,
27/40 = 27 × 5/40 × 5 = 135/200 - Add the two like fractions:
720/200 + 135/200 = 720 + 135/200 = 855/200 - 855/200 simplified gives 171/40
- So, 90/25 + 27/40 = 171/40
In mixed form: 411/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/25+54/40 90/50+27/40 90/25+27/80 90/25+81/40 90/75+27/40