Add 84/30 and 21/63
1st number: 2 24/30, 2nd number: 21/63
84/30 + 21/63 is 47/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 30 × 21 = 630,
84/30 = 84 × 21/30 × 21 = 1764/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
21/63 = 21 × 10/63 × 10 = 210/630 - Add the two like fractions:
1764/630 + 210/630 = 1764 + 210/630 = 1974/630 - 1974/630 simplified gives 47/15
- So, 84/30 + 21/63 = 47/15
In mixed form: 32/15
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