Add 42/90 and 49/50
42/90 + 49/50 is 217/150.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 90 × 5 = 450,
42/90 = 42 × 5/90 × 5 = 210/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
49/50 = 49 × 9/50 × 9 = 441/450 - Add the two like fractions:
210/450 + 441/450 = 210 + 441/450 = 651/450 - 651/450 simplified gives 217/150
- So, 42/90 + 49/50 = 217/150
In mixed form: 167/150
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/90+49/50 42/90+98/50