Add 12/63 and 90/30
1st number: 12/63, 2nd number: 3 0/30
12/63 + 90/30 is 67/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 30 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
12/63 = 12 × 10/63 × 10 = 120/630 - Likewise, for the 2nd fraction, since 30 × 21 = 630,
90/30 = 90 × 21/30 × 21 = 1890/630 - Add the two like fractions:
120/630 + 1890/630 = 120 + 1890/630 = 2010/630 - 2010/630 simplified gives 67/21
- So, 12/63 + 90/30 = 67/21
In mixed form: 34/21
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