Add 63/90 and 84/42
1st number: 63/90, 2nd number: 2 0/42
63/90 + 84/42 is 27/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
63/90 = 63 × 7/90 × 7 = 441/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
84/42 = 84 × 15/42 × 15 = 1260/630 - Add the two like fractions:
441/630 + 1260/630 = 441 + 1260/630 = 1701/630 - 1701/630 simplified gives 27/10
- So, 63/90 + 84/42 = 27/10
In mixed form: 27/10
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