Add 18/70 and 50/12
1st number: 18/70, 2nd number: 4 2/12
18/70 + 50/12 is 929/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 12 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
18/70 = 18 × 6/70 × 6 = 108/420 - Likewise, for the 2nd fraction, since 12 × 35 = 420,
50/12 = 50 × 35/12 × 35 = 1750/420 - Add the two like fractions:
108/420 + 1750/420 = 108 + 1750/420 = 1858/420 - 1858/420 simplified gives 929/210
- So, 18/70 + 50/12 = 929/210
In mixed form: 489/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/70+50/12 18/70+50/24 54/70+50/12 18/70+50/36 90/70+50/12 18/70+50/60 18/70+50/84