Add 75/30 and 90/72
1st number: 2 15/30, 2nd number: 1 18/72
75/30 + 90/72 is 15/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 30 × 12 = 360,
75/30 = 75 × 12/30 × 12 = 900/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
90/72 = 90 × 5/72 × 5 = 450/360 - Add the two like fractions:
900/360 + 450/360 = 900 + 450/360 = 1350/360 - 1350/360 simplified gives 15/4
- So, 75/30 + 90/72 = 15/4
In mixed form: 33/4
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