Add 30/20 and 70/72
1st number: 1 10/20, 2nd number: 70/72
30/20 + 70/72 is 89/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 20 × 18 = 360,
30/20 = 30 × 18/20 × 18 = 540/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
70/72 = 70 × 5/72 × 5 = 350/360 - Add the two like fractions:
540/360 + 350/360 = 540 + 350/360 = 890/360 - 890/360 simplified gives 89/36
- So, 30/20 + 70/72 = 89/36
In mixed form: 217/36
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