Add 54/30 and 80/42
1st number: 1 24/30, 2nd number: 1 38/42
54/30 + 80/42 is 389/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
54/30 = 54 × 7/30 × 7 = 378/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
80/42 = 80 × 5/42 × 5 = 400/210 - Add the two like fractions:
378/210 + 400/210 = 378 + 400/210 = 778/210 - 778/210 simplified gives 389/105
- So, 54/30 + 80/42 = 389/105
In mixed form: 374/105
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