Add 1/21 and 10/54
1/21 + 10/54 is 44/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 21 × 18 = 378,
1/21 = 1 × 18/21 × 18 = 18/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
10/54 = 10 × 7/54 × 7 = 70/378 - Add the two like fractions:
18/378 + 70/378 = 18 + 70/378 = 88/378 - 88/378 simplified gives 44/189
- So, 1/21 + 10/54 = 44/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/21+10/54 1/21+20/54 1/42+10/54 3/21+10/54 1/21+30/54 1/63+10/54 5/21+10/54 1/21+50/54 7/21+10/54 1/21+70/54