Add 12/70 and 90/42
1st number: 12/70, 2nd number: 2 6/42
12/70 + 90/42 is 81/35.
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,
12/70 = 12 × 3/70 × 3 = 36/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
90/42 = 90 × 5/42 × 5 = 450/210 - Add the two like fractions:
36/210 + 450/210 = 36 + 450/210 = 486/210 - 486/210 simplified gives 81/35
- So, 12/70 + 90/42 = 81/35
In mixed form: 211/35
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