Add 7/42 and 21/7
1st number: 7/42, 2nd number: 3 0/7
7/42 + 21/7 is 19/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 7 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
7/42 = 7 × 1/42 × 1 = 7/42 - Likewise, for the 2nd fraction, since 7 × 6 = 42,
21/7 = 21 × 6/7 × 6 = 126/42 - Add the two like fractions:
7/42 + 126/42 = 7 + 126/42 = 133/42 - 133/42 simplified gives 19/6
- So, 7/42 + 21/7 = 19/6
In mixed form: 31/6
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