Add 84/72 and 63/40
1st number: 1 12/72, 2nd number: 1 23/40
84/72 + 63/40 is 329/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
84/72 = 84 × 5/72 × 5 = 420/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
63/40 = 63 × 9/40 × 9 = 567/360 - Add the two like fractions:
420/360 + 567/360 = 420 + 567/360 = 987/360 - 987/360 simplified gives 329/120
- So, 84/72 + 63/40 = 329/120
In mixed form: 289/120
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