Add 98/18 and 21/70
1st number: 5 8/18, 2nd number: 21/70
98/18 + 21/70 is 517/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 70 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 18 × 35 = 630,
98/18 = 98 × 35/18 × 35 = 3430/630 - Likewise, for the 2nd fraction, since 70 × 9 = 630,
21/70 = 21 × 9/70 × 9 = 189/630 - Add the two like fractions:
3430/630 + 189/630 = 3430 + 189/630 = 3619/630 - 3619/630 simplified gives 517/90
- So, 98/18 + 21/70 = 517/90
In mixed form: 567/90
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