Add 81/63 and 2/90
1st number: 1 18/63, 2nd number: 2/90
81/63 + 2/90 is 412/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
81/63 = 81 × 10/63 × 10 = 810/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
2/90 = 2 × 7/90 × 7 = 14/630 - Add the two like fractions:
810/630 + 14/630 = 810 + 14/630 = 824/630 - 824/630 simplified gives 412/315
- So, 81/63 + 2/90 = 412/315
In mixed form: 197/315
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