Add 50/72 and 90/40
1st number: 50/72, 2nd number: 2 10/40
50/72 + 90/40 is 53/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
50/72 = 50 × 5/72 × 5 = 250/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
90/40 = 90 × 9/40 × 9 = 810/360 - Add the two like fractions:
250/360 + 810/360 = 250 + 810/360 = 1060/360 - 1060/360 simplified gives 53/18
- So, 50/72 + 90/40 = 53/18
In mixed form: 217/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/72+90/80