Add 75/20 and 45/72
1st number: 3 15/20, 2nd number: 45/72
75/20 + 45/72 is 35/8.
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,
75/20 = 75 × 18/20 × 18 = 1350/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
45/72 = 45 × 5/72 × 5 = 225/360 - Add the two like fractions:
1350/360 + 225/360 = 1350 + 225/360 = 1575/360 - 1575/360 simplified gives 35/8
- So, 75/20 + 45/72 = 35/8
In mixed form: 43/8
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