Add 7/90 and 21/6
1st number: 7/90, 2nd number: 3 3/6
7/90 + 21/6 is 161/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 6 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
7/90 = 7 × 1/90 × 1 = 7/90 - Likewise, for the 2nd fraction, since 6 × 15 = 90,
21/6 = 21 × 15/6 × 15 = 315/90 - Add the two like fractions:
7/90 + 315/90 = 7 + 315/90 = 322/90 - 322/90 simplified gives 161/45
- So, 7/90 + 21/6 = 161/45
In mixed form: 326/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/90+21/6 7/90+42/6 7/90+21/12 21/90+21/6 7/90+63/6 7/90+21/18 35/90+21/6 7/90+21/30 49/90+21/6 7/90+21/42