Add 42/63 and 21/50
42/63 + 21/50 is 163/150.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 50 is 3150
Next, find the equivalent fraction of both fractional numbers with denominator 3150 - For the 1st fraction, since 63 × 50 = 3150,
42/63 = 42 × 50/63 × 50 = 2100/3150 - Likewise, for the 2nd fraction, since 50 × 63 = 3150,
21/50 = 21 × 63/50 × 63 = 1323/3150 - Add the two like fractions:
2100/3150 + 1323/3150 = 2100 + 1323/3150 = 3423/3150 - 3423/3150 simplified gives 163/150
- So, 42/63 + 21/50 = 163/150
In mixed form: 113/150
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/63+21/50 42/63+42/50 42/63+63/50