Add 12/7 and 70/40
1st number: 1 5/7, 2nd number: 1 30/40
12/7 + 70/40 is 97/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 7 × 40 = 280,
12/7 = 12 × 40/7 × 40 = 480/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
70/40 = 70 × 7/40 × 7 = 490/280 - Add the two like fractions:
480/280 + 490/280 = 480 + 490/280 = 970/280 - 970/280 simplified gives 97/28
- So, 12/7 + 70/40 = 97/28
In mixed form: 313/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/7+70/40 12/14+70/40 12/7+70/80 36/7+70/40 12/21+70/40 60/7+70/40 12/35+70/40 84/7+70/40 12/49+70/40