Add 30/70 and 63/42
1st number: 30/70, 2nd number: 1 21/42
30/70 + 63/42 is 27/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
30/70 = 30 × 3/70 × 3 = 90/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
63/42 = 63 × 5/42 × 5 = 315/210 - Add the two like fractions:
90/210 + 315/210 = 90 + 315/210 = 405/210 - 405/210 simplified gives 27/14
- So, 30/70 + 63/42 = 27/14
In mixed form: 113/14
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