Add 90/3 and 20/72
1st number: 30 0/3, 2nd number: 20/72
90/3 + 20/72 is 545/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 3 × 24 = 72,
90/3 = 90 × 24/3 × 24 = 2160/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
20/72 = 20 × 1/72 × 1 = 20/72 - Add the two like fractions:
2160/72 + 20/72 = 2160 + 20/72 = 2180/72 - 2180/72 simplified gives 545/18
- So, 90/3 + 20/72 = 545/18
In mixed form: 305/18
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