Add 5/25 and 12/90
5/25 + 12/90 is 1/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 90 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 25 × 18 = 450,
5/25 = 5 × 18/25 × 18 = 90/450 - Likewise, for the 2nd fraction, since 90 × 5 = 450,
12/90 = 12 × 5/90 × 5 = 60/450 - Add the two like fractions:
90/450 + 60/450 = 90 + 60/450 = 150/450 - 150/450 simplified gives 1/3
- So, 5/25 + 12/90 = 1/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/25+12/90 5/25+24/90 5/50+12/90 15/25+12/90 5/25+36/90 5/75+12/90 5/25+60/90 35/25+12/90 5/25+84/90