Add 7/90 and 15/50
7/90 + 15/50 is 17/45.
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,
7/90 = 7 × 5/90 × 5 = 35/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
15/50 = 15 × 9/50 × 9 = 135/450 - Add the two like fractions:
35/450 + 135/450 = 35 + 135/450 = 170/450 - 170/450 simplified gives 17/45
- So, 7/90 + 15/50 = 17/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/90+15/50 7/90+30/50 21/90+15/50 7/90+45/50 35/90+15/50 7/90+75/50 49/90+15/50