Add 30/72 and 70/20
1st number: 30/72, 2nd number: 3 10/20
30/72 + 70/20 is 47/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 20 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
30/72 = 30 × 5/72 × 5 = 150/360 - Likewise, for the 2nd fraction, since 20 × 18 = 360,
70/20 = 70 × 18/20 × 18 = 1260/360 - Add the two like fractions:
150/360 + 1260/360 = 150 + 1260/360 = 1410/360 - 1410/360 simplified gives 47/12
- So, 30/72 + 70/20 = 47/12
In mixed form: 311/12
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