Add 42/72 and 75/10
1st number: 42/72, 2nd number: 7 5/10
42/72 + 75/10 is 97/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 10 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
42/72 = 42 × 5/72 × 5 = 210/360 - Likewise, for the 2nd fraction, since 10 × 36 = 360,
75/10 = 75 × 36/10 × 36 = 2700/360 - Add the two like fractions:
210/360 + 2700/360 = 210 + 2700/360 = 2910/360 - 2910/360 simplified gives 97/12
- So, 42/72 + 75/10 = 97/12
In mixed form: 81/12
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