Add 70/20 and 20/72
1st number: 3 10/20, 2nd number: 20/72
70/20 + 20/72 is 34/9.
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,
70/20 = 70 × 18/20 × 18 = 1260/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
20/72 = 20 × 5/72 × 5 = 100/360 - Add the two like fractions:
1260/360 + 100/360 = 1260 + 100/360 = 1360/360 - 1360/360 simplified gives 34/9
- So, 70/20 + 20/72 = 34/9
In mixed form: 37/9
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