Add 12/90 and 12/50
12/90 + 12/50 is 28/75.
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,
12/90 = 12 × 5/90 × 5 = 60/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
12/50 = 12 × 9/50 × 9 = 108/450 - Add the two like fractions:
60/450 + 108/450 = 60 + 108/450 = 168/450 - 168/450 simplified gives 28/75
- So, 12/90 + 12/50 = 28/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/90+12/50 12/90+24/50 36/90+12/50 12/90+36/50 60/90+12/50 12/90+60/50 84/90+12/50 12/90+84/50