Add 20/5 and 42/72
1st number: 4 0/5, 2nd number: 42/72
20/5 + 42/72 is 55/12.
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,
20/5 = 20 × 72/5 × 72 = 1440/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
42/72 = 42 × 5/72 × 5 = 210/360 - Add the two like fractions:
1440/360 + 210/360 = 1440 + 210/360 = 1650/360 - 1650/360 simplified gives 55/12
- So, 20/5 + 42/72 = 55/12
In mixed form: 47/12
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