Add 14/90 and 30/7
1st number: 14/90, 2nd number: 4 2/7
14/90 + 30/7 is 1399/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 7 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
14/90 = 14 × 7/90 × 7 = 98/630 - Likewise, for the 2nd fraction, since 7 × 90 = 630,
30/7 = 30 × 90/7 × 90 = 2700/630 - Add the two like fractions:
98/630 + 2700/630 = 98 + 2700/630 = 2798/630 - 2798/630 simplified gives 1399/315
- So, 14/90 + 30/7 = 1399/315
In mixed form: 4139/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/90+30/7 14/90+60/7 14/90+30/14 42/90+30/7 14/90+90/7 14/90+30/21 70/90+30/7 14/90+30/35 98/90+30/7 14/90+30/49