Add 81/63 and 70/90
1st number: 1 18/63, 2nd number: 70/90
81/63 + 70/90 is 130/63.
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,
70/90 = 70 × 7/90 × 7 = 490/630 - Add the two like fractions:
810/630 + 490/630 = 810 + 490/630 = 1300/630 - 1300/630 simplified gives 130/63
- So, 81/63 + 70/90 = 130/63
In mixed form: 24/63
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