Add 1/70 and 42/90
1/70 + 42/90 is 101/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 70 × 9 = 630,
1/70 = 1 × 9/70 × 9 = 9/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
42/90 = 42 × 7/90 × 7 = 294/630 - Add the two like fractions:
9/630 + 294/630 = 9 + 294/630 = 303/630 - 303/630 simplified gives 101/210
- So, 1/70 + 42/90 = 101/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/70+42/90 1/70+84/90 3/70+42/90 5/70+42/90 7/70+42/90