Add 80/8 and 4/42
1st number: 10 0/8, 2nd number: 4/42
80/8 + 4/42 is 212/21.
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,
80/8 = 80 × 21/8 × 21 = 1680/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
4/42 = 4 × 4/42 × 4 = 16/168 - Add the two like fractions:
1680/168 + 16/168 = 1680 + 16/168 = 1696/168 - 1696/168 simplified gives 212/21
- So, 80/8 + 4/42 = 212/21
In mixed form: 102/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/8+8/42 80/16+4/42 80/8+4/84 80/8+12/42 80/24+4/42 80/8+20/42 80/40+4/42 80/8+28/42 80/56+4/42