Add 4/16 and 16/81
4/16 + 16/81 is 145/324.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 81 is 1296
Next, find the equivalent fraction of both fractional numbers with denominator 1296 - For the 1st fraction, since 16 × 81 = 1296,
4/16 = 4 × 81/16 × 81 = 324/1296 - Likewise, for the 2nd fraction, since 81 × 16 = 1296,
16/81 = 16 × 16/81 × 16 = 256/1296 - Add the two like fractions:
324/1296 + 256/1296 = 324 + 256/1296 = 580/1296 - 580/1296 simplified gives 145/324
- So, 4/16 + 16/81 = 145/324
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/16+16/81 4/16+32/81 4/32+16/81 12/16+16/81 4/16+48/81 4/48+16/81 20/16+16/81 4/16+80/81 4/80+16/81 28/16+16/81