Add 42/5 and 54/9
1st number: 8 2/5, 2nd number: 6 0/9
42/5 + 54/9 is 72/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 5 × 9 = 45,
42/5 = 42 × 9/5 × 9 = 378/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
54/9 = 54 × 5/9 × 5 = 270/45 - Add the two like fractions:
378/45 + 270/45 = 378 + 270/45 = 648/45 - 648/45 simplified gives 72/5
- So, 42/5 + 54/9 = 72/5
In mixed form: 142/5
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