Add 21/7 and 4/16
1st number: 3 0/7, 2nd number: 4/16
21/7 + 4/16 is 13/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 16 is 112
Next, find the equivalent fraction of both fractional numbers with denominator 112 - For the 1st fraction, since 7 × 16 = 112,
21/7 = 21 × 16/7 × 16 = 336/112 - Likewise, for the 2nd fraction, since 16 × 7 = 112,
4/16 = 4 × 7/16 × 7 = 28/112 - Add the two like fractions:
336/112 + 28/112 = 336 + 28/112 = 364/112 - 364/112 simplified gives 13/4
- So, 21/7 + 4/16 = 13/4
In mixed form: 31/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/7+4/16 21/7+8/16 21/14+4/16 21/7+4/32 63/7+4/16 21/7+12/16 21/7+4/48 21/7+20/16 21/35+4/16 21/7+4/80 21/7+28/16 21/49+4/16