Add 20/72 and 7/5
1st number: 20/72, 2nd number: 1 2/5
20/72 + 7/5 is 151/90.
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,
20/72 = 20 × 5/72 × 5 = 100/360 - Likewise, for the 2nd fraction, since 5 × 72 = 360,
7/5 = 7 × 72/5 × 72 = 504/360 - Add the two like fractions:
100/360 + 504/360 = 100 + 504/360 = 604/360 - 604/360 simplified gives 151/90
- So, 20/72 + 7/5 = 151/90
In mixed form: 161/90
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