Add 98/90 and 9/21
1st number: 1 8/90, 2nd number: 9/21
98/90 + 9/21 is 478/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 21 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
98/90 = 98 × 7/90 × 7 = 686/630 - Likewise, for the 2nd fraction, since 21 × 30 = 630,
9/21 = 9 × 30/21 × 30 = 270/630 - Add the two like fractions:
686/630 + 270/630 = 686 + 270/630 = 956/630 - 956/630 simplified gives 478/315
- So, 98/90 + 9/21 = 478/315
In mixed form: 1163/315
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