Add 7/72 and 70/20
1st number: 7/72, 2nd number: 3 10/20
7/72 + 70/20 is 259/72.
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,
7/72 = 7 × 5/72 × 5 = 35/360 - Likewise, for the 2nd fraction, since 20 × 18 = 360,
70/20 = 70 × 18/20 × 18 = 1260/360 - Add the two like fractions:
35/360 + 1260/360 = 35 + 1260/360 = 1295/360 - 1295/360 simplified gives 259/72
- So, 7/72 + 70/20 = 259/72
In mixed form: 343/72
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