Add 72/36 and 4/90
1st number: 2 0/36, 2nd number: 4/90
72/36 + 4/90 is 92/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
72/36 = 72 × 5/36 × 5 = 360/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
4/90 = 4 × 2/90 × 2 = 8/180 - Add the two like fractions:
360/180 + 8/180 = 360 + 8/180 = 368/180 - 368/180 simplified gives 92/45
- So, 72/36 + 4/90 = 92/45
In mixed form: 22/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/36+8/90 72/36+12/90 72/36+20/90 72/36+28/90