Add 70/8 and 9/42
1st number: 8 6/8, 2nd number: 9/42
70/8 + 9/42 is 251/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 42 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 8 × 21 = 168,
70/8 = 70 × 21/8 × 21 = 1470/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
9/42 = 9 × 4/42 × 4 = 36/168 - Add the two like fractions:
1470/168 + 36/168 = 1470 + 36/168 = 1506/168 - 1506/168 simplified gives 251/28
- So, 70/8 + 9/42 = 251/28
In mixed form: 827/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/8+18/42 70/16+9/42 70/8+9/84 70/8+27/42 70/24+9/42 70/8+45/42 70/40+9/42 70/8+63/42 70/56+9/42