Add 54/45 and 27/42
1st number: 1 9/45, 2nd number: 27/42
54/45 + 27/42 is 129/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
54/45 = 54 × 14/45 × 14 = 756/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
27/42 = 27 × 15/42 × 15 = 405/630 - Add the two like fractions:
756/630 + 405/630 = 756 + 405/630 = 1161/630 - 1161/630 simplified gives 129/70
- So, 54/45 + 27/42 = 129/70
In mixed form: 159/70
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