Add 30/54 and 40/63
30/54 + 40/63 is 25/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 63 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
30/54 = 30 × 7/54 × 7 = 210/378 - Likewise, for the 2nd fraction, since 63 × 6 = 378,
40/63 = 40 × 6/63 × 6 = 240/378 - Add the two like fractions:
210/378 + 240/378 = 210 + 240/378 = 450/378 - 450/378 simplified gives 25/21
- So, 30/54 + 40/63 = 25/21
In mixed form: 14/21
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