Add 14/12 and 54/70
1st number: 1 2/12, 2nd number: 54/70
14/12 + 54/70 is 407/210.
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,
14/12 = 14 × 35/12 × 35 = 490/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
54/70 = 54 × 6/70 × 6 = 324/420 - Add the two like fractions:
490/420 + 324/420 = 490 + 324/420 = 814/420 - 814/420 simplified gives 407/210
- So, 14/12 + 54/70 = 407/210
In mixed form: 1197/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/12+54/70 14/24+54/70 42/12+54/70 14/36+54/70 70/12+54/70 14/60+54/70 98/12+54/70 14/84+54/70