Add 36/70 and 98/90
1st number: 36/70, 2nd number: 1 8/90
36/70 + 98/90 is 101/63.
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,
36/70 = 36 × 9/70 × 9 = 324/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
98/90 = 98 × 7/90 × 7 = 686/630 - Add the two like fractions:
324/630 + 686/630 = 324 + 686/630 = 1010/630 - 1010/630 simplified gives 101/63
- So, 36/70 + 98/90 = 101/63
In mixed form: 138/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/70+98/90