Add 2/54 and 1/21
2/54 + 1/21 is 16/189.
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,
2/54 = 2 × 7/54 × 7 = 14/378 - Likewise, for the 2nd fraction, since 21 × 18 = 378,
1/21 = 1 × 18/21 × 18 = 18/378 - Add the two like fractions:
14/378 + 18/378 = 14 + 18/378 = 32/378 - 32/378 simplified gives 16/189
- So, 2/54 + 1/21 = 16/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/54+1/21 2/54+2/21 2/54+1/42 6/54+1/21 2/54+3/21 2/54+1/63 10/54+1/21 2/54+5/21 14/54+1/21 2/54+7/21