Add 30/7 and 4/90
1st number: 4 2/7, 2nd number: 4/90
30/7 + 4/90 is 1364/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 7 × 90 = 630,
30/7 = 30 × 90/7 × 90 = 2700/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
4/90 = 4 × 7/90 × 7 = 28/630 - Add the two like fractions:
2700/630 + 28/630 = 2700 + 28/630 = 2728/630 - 2728/630 simplified gives 1364/315
- So, 30/7 + 4/90 = 1364/315
In mixed form: 4104/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/7+4/90 30/7+8/90 30/14+4/90 90/7+4/90 30/7+12/90 30/21+4/90 30/7+20/90 30/35+4/90 30/7+28/90 30/49+4/90