Add 98/90 and 21/63
1st number: 1 8/90, 2nd number: 21/63
98/90 + 21/63 is 64/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 63 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 63 × 10 = 630,
21/63 = 21 × 10/63 × 10 = 210/630 - Add the two like fractions:
686/630 + 210/630 = 686 + 210/630 = 896/630 - 896/630 simplified gives 64/45
- So, 98/90 + 21/63 = 64/45
In mixed form: 119/45
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