Add 9/90 and 4/70
9/90 + 4/70 is 11/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
9/90 = 9 × 7/90 × 7 = 63/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
4/70 = 4 × 9/70 × 9 = 36/630 - Add the two like fractions:
63/630 + 36/630 = 63 + 36/630 = 99/630 - 99/630 simplified gives 11/70
- So, 9/90 + 4/70 = 11/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/90+4/70 9/90+8/70 27/90+4/70 9/90+12/70 45/90+4/70 9/90+20/70 63/90+4/70 9/90+28/70