Add 21/14 and 8/54
1st number: 1 7/14, 2nd number: 8/54
21/14 + 8/54 is 89/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 14 × 27 = 378,
21/14 = 21 × 27/14 × 27 = 567/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
8/54 = 8 × 7/54 × 7 = 56/378 - Add the two like fractions:
567/378 + 56/378 = 567 + 56/378 = 623/378 - 623/378 simplified gives 89/54
- So, 21/14 + 8/54 = 89/54
In mixed form: 135/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/14+8/54 21/14+16/54 21/28+8/54 63/14+8/54 21/14+24/54 21/42+8/54 21/14+40/54 21/70+8/54 21/14+56/54 21/98+8/54