Add 36/45 and 12/70
36/45 + 12/70 is 34/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
36/45 = 36 × 14/45 × 14 = 504/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
12/70 = 12 × 9/70 × 9 = 108/630 - Add the two like fractions:
504/630 + 108/630 = 504 + 108/630 = 612/630 - 612/630 simplified gives 34/35
- So, 36/45 + 12/70 = 34/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/45+12/70 36/45+24/70 36/90+12/70 36/45+36/70 36/45+60/70 36/45+84/70