Add 42/10 and 21/63
1st number: 4 2/10, 2nd number: 21/63
42/10 + 21/63 is 68/15.
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,
42/10 = 42 × 63/10 × 63 = 2646/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
21/63 = 21 × 10/63 × 10 = 210/630 - Add the two like fractions:
2646/630 + 210/630 = 2646 + 210/630 = 2856/630 - 2856/630 simplified gives 68/15
- So, 42/10 + 21/63 = 68/15
In mixed form: 48/15
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