Add 12/70 and 14/40
12/70 + 14/40 is 73/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 40 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 40 × 7 = 280,
14/40 = 14 × 7/40 × 7 = 98/280 - Add the two like fractions:
48/280 + 98/280 = 48 + 98/280 = 146/280 - 146/280 simplified gives 73/140
- So, 12/70 + 14/40 = 73/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/70+14/40 12/70+28/40 12/70+14/80 36/70+14/40 12/70+42/40 60/70+14/40 12/70+70/40 84/70+14/40 12/70+98/40