Add 21/48 and 28/50
21/48 + 28/50 is 399/400.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 50 is 1200
Next, find the equivalent fraction of both fractional numbers with denominator 1200 - For the 1st fraction, since 48 × 25 = 1200,
21/48 = 21 × 25/48 × 25 = 525/1200 - Likewise, for the 2nd fraction, since 50 × 24 = 1200,
28/50 = 28 × 24/50 × 24 = 672/1200 - Add the two like fractions:
525/1200 + 672/1200 = 525 + 672/1200 = 1197/1200 - 1197/1200 simplified gives 399/400
- So, 21/48 + 28/50 = 399/400
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/48+28/50 21/48+56/50 21/96+28/50 63/48+28/50 21/48+84/50