Add 6/16 and 21/30
6/16 + 21/30 is 43/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 30 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 16 × 15 = 240,
6/16 = 6 × 15/16 × 15 = 90/240 - Likewise, for the 2nd fraction, since 30 × 8 = 240,
21/30 = 21 × 8/30 × 8 = 168/240 - Add the two like fractions:
90/240 + 168/240 = 90 + 168/240 = 258/240 - 258/240 simplified gives 43/40
- So, 6/16 + 21/30 = 43/40
In mixed form: 13/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/16+21/30 6/16+42/30 6/32+21/30 6/16+21/60 18/16+21/30 6/16+63/30 6/48+21/30 6/16+21/90 30/16+21/30 6/80+21/30 42/16+21/30