Add 54/14 and 8/42
1st number: 3 12/14, 2nd number: 8/42
54/14 + 8/42 is 85/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 14 × 3 = 42,
54/14 = 54 × 3/14 × 3 = 162/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
8/42 = 8 × 1/42 × 1 = 8/42 - Add the two like fractions:
162/42 + 8/42 = 162 + 8/42 = 170/42 - 170/42 simplified gives 85/21
- So, 54/14 + 8/42 = 85/21
In mixed form: 41/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/14+16/42 54/28+8/42 54/14+8/84 54/14+24/42 54/42+8/42 54/14+40/42 54/70+8/42 54/14+56/42 54/98+8/42