Add 4/54 and 16/21
4/54 + 16/21 is 158/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 21 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
4/54 = 4 × 7/54 × 7 = 28/378 - Likewise, for the 2nd fraction, since 21 × 18 = 378,
16/21 = 16 × 18/21 × 18 = 288/378 - Add the two like fractions:
28/378 + 288/378 = 28 + 288/378 = 316/378 - 316/378 simplified gives 158/189
- So, 4/54 + 16/21 = 158/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/54+16/21 4/54+32/21 4/54+16/42 12/54+16/21 4/54+48/21 4/54+16/63 20/54+16/21 4/54+80/21 28/54+16/21