Add 81/3 and 8/42
1st number: 27 0/3, 2nd number: 8/42
81/3 + 8/42 is 571/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 3 × 14 = 42,
81/3 = 81 × 14/3 × 14 = 1134/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
8/42 = 8 × 1/42 × 1 = 8/42 - Add the two like fractions:
1134/42 + 8/42 = 1134 + 8/42 = 1142/42 - 1142/42 simplified gives 571/21
- So, 81/3 + 8/42 = 571/21
In mixed form: 274/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/3+16/42 81/6+8/42 81/3+8/84 81/3+24/42 81/9+8/42 81/3+40/42 81/15+8/42 81/3+56/42 81/21+8/42