Add 63/90 and 21/14
1st number: 63/90, 2nd number: 1 7/14
63/90 + 21/14 is 11/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 14 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 14 × 45 = 630,
21/14 = 21 × 45/14 × 45 = 945/630 - Add the two like fractions:
441/630 + 945/630 = 441 + 945/630 = 1386/630 - 1386/630 simplified gives 11/5
- So, 63/90 + 21/14 = 11/5
In mixed form: 21/5
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