Add 21/63 and 4/16
21/63 + 4/16 is 7/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 16 is 1008
Next, find the equivalent fraction of both fractional numbers with denominator 1008 - For the 1st fraction, since 63 × 16 = 1008,
21/63 = 21 × 16/63 × 16 = 336/1008 - Likewise, for the 2nd fraction, since 16 × 63 = 1008,
4/16 = 4 × 63/16 × 63 = 252/1008 - Add the two like fractions:
336/1008 + 252/1008 = 336 + 252/1008 = 588/1008 - 588/1008 simplified gives 7/12
- So, 21/63 + 4/16 = 7/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/63+4/16 21/63+8/16 21/63+4/32 21/63+12/16 21/63+4/48 21/63+20/16 21/63+4/80 21/63+28/16