Add 6/90 and 21/16
1st number: 6/90, 2nd number: 1 5/16
6/90 + 21/16 is 331/240.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 16 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
6/90 = 6 × 8/90 × 8 = 48/720 - Likewise, for the 2nd fraction, since 16 × 45 = 720,
21/16 = 21 × 45/16 × 45 = 945/720 - Add the two like fractions:
48/720 + 945/720 = 48 + 945/720 = 993/720 - 993/720 simplified gives 331/240
- So, 6/90 + 21/16 = 331/240
In mixed form: 191/240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/90+21/16 6/90+42/16 6/90+21/32 18/90+21/16 6/90+63/16 6/90+21/48 30/90+21/16 6/90+21/80 42/90+21/16