Add 21/63 and 28/10
1st number: 21/63, 2nd number: 2 8/10
21/63 + 28/10 is 47/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 10 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
21/63 = 21 × 10/63 × 10 = 210/630 - Likewise, for the 2nd fraction, since 10 × 63 = 630,
28/10 = 28 × 63/10 × 63 = 1764/630 - Add the two like fractions:
210/630 + 1764/630 = 210 + 1764/630 = 1974/630 - 1974/630 simplified gives 47/15
- So, 21/63 + 28/10 = 47/15
In mixed form: 32/15
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