Add 70/72 and 45/50
70/72 + 45/50 is 337/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 50 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 72 × 25 = 1800,
70/72 = 70 × 25/72 × 25 = 1750/1800 - Likewise, for the 2nd fraction, since 50 × 36 = 1800,
45/50 = 45 × 36/50 × 36 = 1620/1800 - Add the two like fractions:
1750/1800 + 1620/1800 = 1750 + 1620/1800 = 3370/1800 - 3370/1800 simplified gives 337/180
- So, 70/72 + 45/50 = 337/180
In mixed form: 1157/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/72+90/50