Add 28/5 and 20/72
1st number: 5 3/5, 2nd number: 20/72
28/5 + 20/72 is 529/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 5 × 72 = 360,
28/5 = 28 × 72/5 × 72 = 2016/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
20/72 = 20 × 5/72 × 5 = 100/360 - Add the two like fractions:
2016/360 + 100/360 = 2016 + 100/360 = 2116/360 - 2116/360 simplified gives 529/90
- So, 28/5 + 20/72 = 529/90
In mixed form: 579/90
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