Add 72/20 and 36/7
1st number: 3 12/20, 2nd number: 5 1/7
72/20 + 36/7 is 306/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 7 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
72/20 = 72 × 7/20 × 7 = 504/140 - Likewise, for the 2nd fraction, since 7 × 20 = 140,
36/7 = 36 × 20/7 × 20 = 720/140 - Add the two like fractions:
504/140 + 720/140 = 504 + 720/140 = 1224/140 - 1224/140 simplified gives 306/35
- So, 72/20 + 36/7 = 306/35
In mixed form: 826/35
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