Add 30/90 and 81/72
1st number: 30/90, 2nd number: 1 9/72
30/90 + 81/72 is 35/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
30/90 = 30 × 4/90 × 4 = 120/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
81/72 = 81 × 5/72 × 5 = 405/360 - Add the two like fractions:
120/360 + 405/360 = 120 + 405/360 = 525/360 - 525/360 simplified gives 35/24
- So, 30/90 + 81/72 = 35/24
In mixed form: 111/24
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