Add 30/12 and 12/70
1st number: 2 6/12, 2nd number: 12/70
30/12 + 12/70 is 187/70.
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,
30/12 = 30 × 35/12 × 35 = 1050/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
12/70 = 12 × 6/70 × 6 = 72/420 - Add the two like fractions:
1050/420 + 72/420 = 1050 + 72/420 = 1122/420 - 1122/420 simplified gives 187/70
- So, 30/12 + 12/70 = 187/70
In mixed form: 247/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/12+12/70 30/12+24/70 30/24+12/70 90/12+12/70 30/12+36/70 30/36+12/70 30/12+60/70 30/60+12/70 30/12+84/70 30/84+12/70