Add 70/42 and 7/8
1st number: 1 28/42, 2nd number: 7/8
70/42 + 7/8 is 61/24.
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,
70/42 = 70 × 4/42 × 4 = 280/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
7/8 = 7 × 21/8 × 21 = 147/168 - Add the two like fractions:
280/168 + 147/168 = 280 + 147/168 = 427/168 - 427/168 simplified gives 61/24
- So, 70/42 + 7/8 = 61/24
In mixed form: 213/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/42+14/8 70/84+7/8 70/42+7/16 70/42+21/8 70/42+7/24 70/42+35/8 70/42+7/40 70/42+49/8 70/42+7/56