Add 72/63 and 84/45
1st number: 1 9/63, 2nd number: 1 39/45
72/63 + 84/45 is 316/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 45 is 315
Next, find the equivalent fraction of both fractional numbers with denominator 315 - For the 1st fraction, since 63 × 5 = 315,
72/63 = 72 × 5/63 × 5 = 360/315 - Likewise, for the 2nd fraction, since 45 × 7 = 315,
84/45 = 84 × 7/45 × 7 = 588/315 - Add the two like fractions:
360/315 + 588/315 = 360 + 588/315 = 948/315 - 948/315 simplified gives 316/105
- So, 72/63 + 84/45 = 316/105
In mixed form: 31/105
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