Add 15/5 and 20/42
1st number: 3 0/5, 2nd number: 20/42
15/5 + 20/42 is 73/21.
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,
15/5 = 15 × 42/5 × 42 = 630/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
20/42 = 20 × 5/42 × 5 = 100/210 - Add the two like fractions:
630/210 + 100/210 = 630 + 100/210 = 730/210 - 730/210 simplified gives 73/21
- So, 15/5 + 20/42 = 73/21
In mixed form: 310/21
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