Add 54/5 and 15/42
1st number: 10 4/5, 2nd number: 15/42
54/5 + 15/42 is 781/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 5 × 42 = 210,
54/5 = 54 × 42/5 × 42 = 2268/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
15/42 = 15 × 5/42 × 5 = 75/210 - Add the two like fractions:
2268/210 + 75/210 = 2268 + 75/210 = 2343/210 - 2343/210 simplified gives 781/70
- So, 54/5 + 15/42 = 781/70
In mixed form: 1111/70
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