Add 18/42 and 54/5
1st number: 18/42, 2nd number: 10 4/5
18/42 + 54/5 is 393/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 5 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
18/42 = 18 × 5/42 × 5 = 90/210 - Likewise, for the 2nd fraction, since 5 × 42 = 210,
54/5 = 54 × 42/5 × 42 = 2268/210 - Add the two like fractions:
90/210 + 2268/210 = 90 + 2268/210 = 2358/210 - 2358/210 simplified gives 393/35
- So, 18/42 + 54/5 = 393/35
In mixed form: 118/35
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