Add 42/90 and 40/12
1st number: 42/90, 2nd number: 3 4/12
42/90 + 40/12 is 19/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 12 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
42/90 = 42 × 2/90 × 2 = 84/180 - Likewise, for the 2nd fraction, since 12 × 15 = 180,
40/12 = 40 × 15/12 × 15 = 600/180 - Add the two like fractions:
84/180 + 600/180 = 84 + 600/180 = 684/180 - 684/180 simplified gives 19/5
- So, 42/90 + 40/12 = 19/5
In mixed form: 34/5
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