Add 30/70 and 16/18
30/70 + 16/18 is 83/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 18 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
30/70 = 30 × 9/70 × 9 = 270/630 - Likewise, for the 2nd fraction, since 18 × 35 = 630,
16/18 = 16 × 35/18 × 35 = 560/630 - Add the two like fractions:
270/630 + 560/630 = 270 + 560/630 = 830/630 - 830/630 simplified gives 83/63
- So, 30/70 + 16/18 = 83/63
In mixed form: 120/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/70+16/18 30/70+32/18 30/70+16/36 90/70+16/18 30/70+48/18 30/70+16/54 30/70+80/18 30/70+16/90