Add 28/30 and 90/63
1st number: 28/30, 2nd number: 1 27/63
28/30 + 90/63 is 248/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 30 × 21 = 630,
28/30 = 28 × 21/30 × 21 = 588/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
90/63 = 90 × 10/63 × 10 = 900/630 - Add the two like fractions:
588/630 + 900/630 = 588 + 900/630 = 1488/630 - 1488/630 simplified gives 248/105
- So, 28/30 + 90/63 = 248/105
In mixed form: 238/105
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