Add 15/72 and 84/45
1st number: 15/72, 2nd number: 1 39/45
15/72 + 84/45 is 83/40.
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,
15/72 = 15 × 5/72 × 5 = 75/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
84/45 = 84 × 8/45 × 8 = 672/360 - Add the two like fractions:
75/360 + 672/360 = 75 + 672/360 = 747/360 - 747/360 simplified gives 83/40
- So, 15/72 + 84/45 = 83/40
In mixed form: 23/40
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