Add 12/70 and 84/8
1st number: 12/70, 2nd number: 10 4/8
12/70 + 84/8 is 747/70.
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,
12/70 = 12 × 4/70 × 4 = 48/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
84/8 = 84 × 35/8 × 35 = 2940/280 - Add the two like fractions:
48/280 + 2940/280 = 48 + 2940/280 = 2988/280 - 2988/280 simplified gives 747/70
- So, 12/70 + 84/8 = 747/70
In mixed form: 1047/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/70+84/8 12/70+84/16 36/70+84/8 12/70+84/24 60/70+84/8 12/70+84/40 84/70+84/8 12/70+84/56