Add 20/90 and 64/45
1st number: 20/90, 2nd number: 1 19/45
20/90 + 64/45 is 74/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
20/90 = 20 × 1/90 × 1 = 20/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
64/45 = 64 × 2/45 × 2 = 128/90 - Add the two like fractions:
20/90 + 128/90 = 20 + 128/90 = 148/90 - 148/90 simplified gives 74/45
- So, 20/90 + 64/45 = 74/45
In mixed form: 129/45
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