Add 21/6 and 90/75
1st number: 3 3/6, 2nd number: 1 15/75
21/6 + 90/75 is 47/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 75 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 6 × 25 = 150,
21/6 = 21 × 25/6 × 25 = 525/150 - Likewise, for the 2nd fraction, since 75 × 2 = 150,
90/75 = 90 × 2/75 × 2 = 180/150 - Add the two like fractions:
525/150 + 180/150 = 525 + 180/150 = 705/150 - 705/150 simplified gives 47/10
- So, 21/6 + 90/75 = 47/10
In mixed form: 47/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/6+90/75 21/12+90/75 63/6+90/75 21/18+90/75 21/30+90/75 21/42+90/75