Add 28/72 and 20/5
1st number: 28/72, 2nd number: 4 0/5
28/72 + 20/5 is 79/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 5 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
28/72 = 28 × 5/72 × 5 = 140/360 - Likewise, for the 2nd fraction, since 5 × 72 = 360,
20/5 = 20 × 72/5 × 72 = 1440/360 - Add the two like fractions:
140/360 + 1440/360 = 140 + 1440/360 = 1580/360 - 1580/360 simplified gives 79/18
- So, 28/72 + 20/5 = 79/18
In mixed form: 47/18
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