Add 90/30 and 14/70
1st number: 3 0/30, 2nd number: 14/70
90/30 + 14/70 is 16/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
90/30 = 90 × 7/30 × 7 = 630/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
14/70 = 14 × 3/70 × 3 = 42/210 - Add the two like fractions:
630/210 + 42/210 = 630 + 42/210 = 672/210 - 672/210 simplified gives 16/5
- So, 90/30 + 14/70 = 16/5
In mixed form: 31/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30+28/70 90/60+14/70 90/30+42/70 90/30+98/70