Add 70/8 and 42/72
1st number: 8 6/8, 2nd number: 42/72
70/8 + 42/72 is 28/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
70/8 = 70 × 9/8 × 9 = 630/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
42/72 = 42 × 1/72 × 1 = 42/72 - Add the two like fractions:
630/72 + 42/72 = 630 + 42/72 = 672/72 - 672/72 simplified gives 28/3
- So, 70/8 + 42/72 = 28/3
In mixed form: 91/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/8+84/72 70/16+42/72 70/24+42/72 70/40+42/72 70/56+42/72