Add 90/5 and 72/36
1st number: 18 0/5, 2nd number: 2 0/36
90/5 + 72/36 is 20/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 5 × 36 = 180,
90/5 = 90 × 36/5 × 36 = 3240/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
72/36 = 72 × 5/36 × 5 = 360/180 - Add the two like fractions:
3240/180 + 360/180 = 3240 + 360/180 = 3600/180 - 3600/180 simplified gives 20/1
- So, 90/5 + 72/36 = 20/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/10+72/36 90/15+72/36 90/25+72/36 90/35+72/36