Add 98/8 and 63/42
1st number: 12 2/8, 2nd number: 1 21/42
98/8 + 63/42 is 55/4.
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,
98/8 = 98 × 21/8 × 21 = 2058/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
63/42 = 63 × 4/42 × 4 = 252/168 - Add the two like fractions:
2058/168 + 252/168 = 2058 + 252/168 = 2310/168 - 2310/168 simplified gives 55/4
- So, 98/8 + 63/42 = 55/4
In mixed form: 133/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/16+63/42 98/8+63/84 98/24+63/42 98/40+63/42 98/56+63/42