Add 30/10 and 81/63
1st number: 3 0/10, 2nd number: 1 18/63
30/10 + 81/63 is 30/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 10 × 63 = 630,
30/10 = 30 × 63/10 × 63 = 1890/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
81/63 = 81 × 10/63 × 10 = 810/630 - Add the two like fractions:
1890/630 + 810/630 = 1890 + 810/630 = 2700/630 - 2700/630 simplified gives 30/7
- So, 30/10 + 81/63 = 30/7
In mixed form: 42/7
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