Add 84/70 and 42/12
1st number: 1 14/70, 2nd number: 3 6/12
84/70 + 42/12 is 47/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 12 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
84/70 = 84 × 6/70 × 6 = 504/420 - Likewise, for the 2nd fraction, since 12 × 35 = 420,
42/12 = 42 × 35/12 × 35 = 1470/420 - Add the two like fractions:
504/420 + 1470/420 = 504 + 1470/420 = 1974/420 - 1974/420 simplified gives 47/10
- So, 84/70 + 42/12 = 47/10
In mixed form: 47/10
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