Add 21/72 and 72/50
1st number: 21/72, 2nd number: 1 22/50
21/72 + 72/50 is 1039/600.
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,
21/72 = 21 × 25/72 × 25 = 525/1800 - Likewise, for the 2nd fraction, since 50 × 36 = 1800,
72/50 = 72 × 36/50 × 36 = 2592/1800 - Add the two like fractions:
525/1800 + 2592/1800 = 525 + 2592/1800 = 3117/1800 - 3117/1800 simplified gives 1039/600
- So, 21/72 + 72/50 = 1039/600
In mixed form: 1439/600
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/72+72/50 63/72+72/50