Add 12/14 and 36/40
12/14 + 36/40 is 123/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 14 × 20 = 280,
12/14 = 12 × 20/14 × 20 = 240/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
36/40 = 36 × 7/40 × 7 = 252/280 - Add the two like fractions:
240/280 + 252/280 = 240 + 252/280 = 492/280 - 492/280 simplified gives 123/70
- So, 12/14 + 36/40 = 123/70
In mixed form: 153/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/14+36/40 12/14+72/40 12/28+36/40 12/14+36/80 36/14+36/40 12/42+36/40 60/14+36/40 12/70+36/40 84/14+36/40 12/98+36/40