Add 9/54 and 30/21
1st number: 9/54, 2nd number: 1 9/21
9/54 + 30/21 is 67/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 21 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
9/54 = 9 × 7/54 × 7 = 63/378 - Likewise, for the 2nd fraction, since 21 × 18 = 378,
30/21 = 30 × 18/21 × 18 = 540/378 - Add the two like fractions:
63/378 + 540/378 = 63 + 540/378 = 603/378 - 603/378 simplified gives 67/42
- So, 9/54 + 30/21 = 67/42
In mixed form: 125/42
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