Add 3/16 and 4/21
3/16 + 4/21 is 127/336.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 21 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
3/16 = 3 × 21/16 × 21 = 63/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
4/21 = 4 × 16/21 × 16 = 64/336 - Add the two like fractions:
63/336 + 64/336 = 63 + 64/336 = 127/336 - So, 3/16 + 4/21 = 127/336
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/16+4/21 3/16+8/21 3/32+4/21 3/16+4/42 9/16+4/21 3/16+12/21 3/48+4/21 3/16+4/63 15/16+4/21 3/16+20/21 3/80+4/21 21/16+4/21 3/16+28/21