Add 36/90 and 70/72
36/90 + 70/72 is 247/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
36/90 = 36 × 4/90 × 4 = 144/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
70/72 = 70 × 5/72 × 5 = 350/360 - Add the two like fractions:
144/360 + 350/360 = 144 + 350/360 = 494/360 - 494/360 simplified gives 247/180
- So, 36/90 + 70/72 = 247/180
In mixed form: 167/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/90+70/72