Add 8/42 and 70/63
1st number: 8/42, 2nd number: 1 7/63
8/42 + 70/63 is 82/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 63 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
8/42 = 8 × 3/42 × 3 = 24/126 - Likewise, for the 2nd fraction, since 63 × 2 = 126,
70/63 = 70 × 2/63 × 2 = 140/126 - Add the two like fractions:
24/126 + 140/126 = 24 + 140/126 = 164/126 - 164/126 simplified gives 82/63
- So, 8/42 + 70/63 = 82/63
In mixed form: 119/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/42+70/63 8/84+70/63 24/42+70/63 40/42+70/63 56/42+70/63