Add 1/42 and 30/8
1st number: 1/42, 2nd number: 3 6/8
1/42 + 30/8 is 317/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
1/42 = 1 × 4/42 × 4 = 4/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
30/8 = 30 × 21/8 × 21 = 630/168 - Add the two like fractions:
4/168 + 630/168 = 4 + 630/168 = 634/168 - 634/168 simplified gives 317/84
- So, 1/42 + 30/8 = 317/84
In mixed form: 365/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/42+30/8 1/42+60/8 1/84+30/8 1/42+30/16 3/42+30/8 1/42+90/8 1/42+30/24 5/42+30/8 1/42+30/40 7/42+30/8 1/42+30/56