Add 72/70 and 84/8
1st number: 1 2/70, 2nd number: 10 4/8
72/70 + 84/8 is 807/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 8 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
72/70 = 72 × 4/70 × 4 = 288/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
84/8 = 84 × 35/8 × 35 = 2940/280 - Add the two like fractions:
288/280 + 2940/280 = 288 + 2940/280 = 3228/280 - 3228/280 simplified gives 807/70
- So, 72/70 + 84/8 = 807/70
In mixed form: 1137/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/70+84/16 72/70+84/24 72/70+84/40 72/70+84/56