Add 15/54 and 45/42
1st number: 15/54, 2nd number: 1 3/42
15/54 + 45/42 is 85/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 42 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
15/54 = 15 × 7/54 × 7 = 105/378 - Likewise, for the 2nd fraction, since 42 × 9 = 378,
45/42 = 45 × 9/42 × 9 = 405/378 - Add the two like fractions:
105/378 + 405/378 = 105 + 405/378 = 510/378 - 510/378 simplified gives 85/63
- So, 15/54 + 45/42 = 85/63
In mixed form: 122/63
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