Add 12/42 and 50/70
12/42 + 50/70 is 1/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
12/42 = 12 × 5/42 × 5 = 60/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
50/70 = 50 × 3/70 × 3 = 150/210 - Add the two like fractions:
60/210 + 150/210 = 60 + 150/210 = 210/210 - 210/210 simplified gives 1/1
- So, 12/42 + 50/70 = 1/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/42+50/70 12/84+50/70 36/42+50/70 60/42+50/70 84/42+50/70