Add 42/75 and 21/24
42/75 + 21/24 is 287/200.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 24 is 600
Next, find the equivalent fraction of both fractional numbers with denominator 600 - For the 1st fraction, since 75 × 8 = 600,
42/75 = 42 × 8/75 × 8 = 336/600 - Likewise, for the 2nd fraction, since 24 × 25 = 600,
21/24 = 21 × 25/24 × 25 = 525/600 - Add the two like fractions:
336/600 + 525/600 = 336 + 525/600 = 861/600 - 861/600 simplified gives 287/200
- So, 42/75 + 21/24 = 287/200
In mixed form: 187/200
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/75+21/24 42/75+42/24 42/75+21/48 42/75+63/24 42/75+21/72