Add 42/90 and 3/36
42/90 + 3/36 is 11/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 36 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 36 × 5 = 180,
3/36 = 3 × 5/36 × 5 = 15/180 - Add the two like fractions:
84/180 + 15/180 = 84 + 15/180 = 99/180 - 99/180 simplified gives 11/20
- So, 42/90 + 3/36 = 11/20
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