Add 42/72 and 75/45
1st number: 42/72, 2nd number: 1 30/45
42/72 + 75/45 is 9/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 45 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 45 × 8 = 360,
75/45 = 75 × 8/45 × 8 = 600/360 - Add the two like fractions:
210/360 + 600/360 = 210 + 600/360 = 810/360 - 810/360 simplified gives 9/4
- So, 42/72 + 75/45 = 9/4
In mixed form: 21/4
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