Add 56/8 and 4/42
1st number: 7 0/8, 2nd number: 4/42
56/8 + 4/42 is 149/21.
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,
56/8 = 56 × 21/8 × 21 = 1176/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
4/42 = 4 × 4/42 × 4 = 16/168 - Add the two like fractions:
1176/168 + 16/168 = 1176 + 16/168 = 1192/168 - 1192/168 simplified gives 149/21
- So, 56/8 + 4/42 = 149/21
In mixed form: 72/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/8+8/42 56/16+4/42 56/8+4/84 56/8+12/42 56/24+4/42 56/8+20/42 56/40+4/42 56/8+28/42