Add 54/7 and 42/9
1st number: 7 5/7, 2nd number: 4 6/9
54/7 + 42/9 is 260/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
54/7 = 54 × 9/7 × 9 = 486/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
42/9 = 42 × 7/9 × 7 = 294/63 - Add the two like fractions:
486/63 + 294/63 = 486 + 294/63 = 780/63 - 780/63 simplified gives 260/21
- So, 54/7 + 42/9 = 260/21
In mixed form: 128/21
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