Add 90/3 and 45/20
1st number: 30 0/3, 2nd number: 2 5/20
90/3 + 45/20 is 129/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 3 × 20 = 60,
90/3 = 90 × 20/3 × 20 = 1800/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
45/20 = 45 × 3/20 × 3 = 135/60 - Add the two like fractions:
1800/60 + 135/60 = 1800 + 135/60 = 1935/60 - 1935/60 simplified gives 129/4
- So, 90/3 + 45/20 = 129/4
In mixed form: 321/4
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