Add 70/4 and 42/90
1st number: 17 2/4, 2nd number: 42/90
70/4 + 42/90 is 539/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
70/4 = 70 × 45/4 × 45 = 3150/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
42/90 = 42 × 2/90 × 2 = 84/180 - Add the two like fractions:
3150/180 + 84/180 = 3150 + 84/180 = 3234/180 - 3234/180 simplified gives 539/30
- So, 70/4 + 42/90 = 539/30
In mixed form: 1729/30
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