Add 45/75 and 21/6
1st number: 45/75, 2nd number: 3 3/6
45/75 + 21/6 is 41/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 6 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 75 × 2 = 150,
45/75 = 45 × 2/75 × 2 = 90/150 - Likewise, for the 2nd fraction, since 6 × 25 = 150,
21/6 = 21 × 25/6 × 25 = 525/150 - Add the two like fractions:
90/150 + 525/150 = 90 + 525/150 = 615/150 - 615/150 simplified gives 41/10
- So, 45/75 + 21/6 = 41/10
In mixed form: 41/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/75+21/6 45/75+42/6 45/75+21/12 45/75+63/6 45/75+21/18 45/75+21/30 45/75+21/42