Add 42/50 and 25/90
42/50 + 25/90 is 503/450.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 90 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 90 × 5 = 450,
25/90 = 25 × 5/90 × 5 = 125/450 - Add the two like fractions:
378/450 + 125/450 = 378 + 125/450 = 503/450 - So, 42/50 + 25/90 = 503/450
In mixed form: 153/450
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/50+25/90 42/50+50/90 42/50+75/90