Add 45/7 and 12/70
1st number: 6 3/7, 2nd number: 12/70
45/7 + 12/70 is 33/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 7 × 10 = 70,
45/7 = 45 × 10/7 × 10 = 450/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
12/70 = 12 × 1/70 × 1 = 12/70 - Add the two like fractions:
450/70 + 12/70 = 450 + 12/70 = 462/70 - 462/70 simplified gives 33/5
- So, 45/7 + 12/70 = 33/5
In mixed form: 63/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/7+12/70 45/7+24/70 45/14+12/70 45/7+36/70 45/21+12/70 45/7+60/70 45/35+12/70 45/7+84/70 45/49+12/70