Add 12/42 and 84/45
1st number: 12/42, 2nd number: 1 39/45
12/42 + 84/45 is 226/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
12/42 = 12 × 15/42 × 15 = 180/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
84/45 = 84 × 14/45 × 14 = 1176/630 - Add the two like fractions:
180/630 + 1176/630 = 180 + 1176/630 = 1356/630 - 1356/630 simplified gives 226/105
- So, 12/42 + 84/45 = 226/105
In mixed form: 216/105
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