Add 45/20 and 27/72
1st number: 2 5/20, 2nd number: 27/72
45/20 + 27/72 is 21/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 20 × 18 = 360,
45/20 = 45 × 18/20 × 18 = 810/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
27/72 = 27 × 5/72 × 5 = 135/360 - Add the two like fractions:
810/360 + 135/360 = 810 + 135/360 = 945/360 - 945/360 simplified gives 21/8
- So, 45/20 + 27/72 = 21/8
In mixed form: 25/8
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