Add 42/50 and 15/45
42/50 + 15/45 is 88/75.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 45 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 50 × 9 = 450,
42/50 = 42 × 9/50 × 9 = 378/450 - Likewise, for the 2nd fraction, since 45 × 10 = 450,
15/45 = 15 × 10/45 × 10 = 150/450 - Add the two like fractions:
378/450 + 150/450 = 378 + 150/450 = 528/450 - 528/450 simplified gives 88/75
- So, 42/50 + 15/45 = 88/75
In mixed form: 113/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/50+15/45 42/50+30/45 42/50+15/90 42/50+75/45