Add 75/12 and 84/70
1st number: 6 3/12, 2nd number: 1 14/70
75/12 + 84/70 is 149/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 12 × 35 = 420,
75/12 = 75 × 35/12 × 35 = 2625/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
84/70 = 84 × 6/70 × 6 = 504/420 - Add the two like fractions:
2625/420 + 504/420 = 2625 + 504/420 = 3129/420 - 3129/420 simplified gives 149/20
- So, 75/12 + 84/70 = 149/20
In mixed form: 79/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/24+84/70 75/36+84/70 75/60+84/70 75/84+84/70