Add 12/70 and 8/45
12/70 + 8/45 is 22/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
12/70 = 12 × 9/70 × 9 = 108/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
8/45 = 8 × 14/45 × 14 = 112/630 - Add the two like fractions:
108/630 + 112/630 = 108 + 112/630 = 220/630 - 220/630 simplified gives 22/63
- So, 12/70 + 8/45 = 22/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/70+8/45 12/70+16/45 12/70+8/90 36/70+8/45 12/70+24/45 60/70+8/45 12/70+40/45 84/70+8/45 12/70+56/45