Add 40/60 and 12/7
1st number: 40/60, 2nd number: 1 5/7
40/60 + 12/7 is 50/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 7 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
40/60 = 40 × 7/60 × 7 = 280/420 - Likewise, for the 2nd fraction, since 7 × 60 = 420,
12/7 = 12 × 60/7 × 60 = 720/420 - Add the two like fractions:
280/420 + 720/420 = 280 + 720/420 = 1000/420 - 1000/420 simplified gives 50/21
- So, 40/60 + 12/7 = 50/21
In mixed form: 28/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/60+12/7 40/60+24/7 40/60+12/14 40/60+36/7 40/60+12/21 40/60+60/7 40/60+12/35 40/60+84/7 40/60+12/49