Add 12/30 and 63/42
1st number: 12/30, 2nd number: 1 21/42
12/30 + 63/42 is 19/10.
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,
12/30 = 12 × 7/30 × 7 = 84/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
63/42 = 63 × 5/42 × 5 = 315/210 - Add the two like fractions:
84/210 + 315/210 = 84 + 315/210 = 399/210 - 399/210 simplified gives 19/10
- So, 12/30 + 63/42 = 19/10
In mixed form: 19/10
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