Add 42/72 and 80/75
1st number: 42/72, 2nd number: 1 5/75
42/72 + 80/75 is 33/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 75 is 1800
Next, find the equivalent fraction of both fractional numbers with denominator 1800 - For the 1st fraction, since 72 × 25 = 1800,
42/72 = 42 × 25/72 × 25 = 1050/1800 - Likewise, for the 2nd fraction, since 75 × 24 = 1800,
80/75 = 80 × 24/75 × 24 = 1920/1800 - Add the two like fractions:
1050/1800 + 1920/1800 = 1050 + 1920/1800 = 2970/1800 - 2970/1800 simplified gives 33/20
- So, 42/72 + 80/75 = 33/20
In mixed form: 113/20
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