Add 27/63 and 30/90
27/63 + 30/90 is 16/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
27/63 = 27 × 10/63 × 10 = 270/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
30/90 = 30 × 7/90 × 7 = 210/630 - Add the two like fractions:
270/630 + 210/630 = 270 + 210/630 = 480/630 - 480/630 simplified gives 16/21
- So, 27/63 + 30/90 = 16/21
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