Add 54/8 and 42/9
1st number: 6 6/8, 2nd number: 4 6/9
54/8 + 42/9 is 137/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 9 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
54/8 = 54 × 9/8 × 9 = 486/72 - Likewise, for the 2nd fraction, since 9 × 8 = 72,
42/9 = 42 × 8/9 × 8 = 336/72 - Add the two like fractions:
486/72 + 336/72 = 486 + 336/72 = 822/72 - 822/72 simplified gives 137/12
- So, 54/8 + 42/9 = 137/12
In mixed form: 115/12
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