Add 28/30 and 42/63
28/30 + 42/63 is 8/5.
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,
42/63 = 42 × 10/63 × 10 = 420/630 - Add the two like fractions:
588/630 + 420/630 = 588 + 420/630 = 1008/630 - 1008/630 simplified gives 8/5
- So, 28/30 + 42/63 = 8/5
In mixed form: 13/5
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