Add 72/20 and 20/28
1st number: 3 12/20, 2nd number: 20/28
72/20 + 20/28 is 151/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 28 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 28 × 5 = 140,
20/28 = 20 × 5/28 × 5 = 100/140 - Add the two like fractions:
504/140 + 100/140 = 504 + 100/140 = 604/140 - 604/140 simplified gives 151/35
- So, 72/20 + 20/28 = 151/35
In mixed form: 411/35
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