Add 10/12 and 25/70
10/12 + 25/70 is 25/21.
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,
10/12 = 10 × 35/12 × 35 = 350/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
25/70 = 25 × 6/70 × 6 = 150/420 - Add the two like fractions:
350/420 + 150/420 = 350 + 150/420 = 500/420 - 500/420 simplified gives 25/21
- So, 10/12 + 25/70 = 25/21
In mixed form: 14/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/12+25/70 10/12+50/70 10/24+25/70 30/12+25/70 10/12+75/70 10/36+25/70 50/12+25/70 10/60+25/70 70/12+25/70 10/84+25/70