Add 1/45 and 84/72
1st number: 1/45, 2nd number: 1 12/72
1/45 + 84/72 is 107/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
1/45 = 1 × 8/45 × 8 = 8/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
84/72 = 84 × 5/72 × 5 = 420/360 - Add the two like fractions:
8/360 + 420/360 = 8 + 420/360 = 428/360 - 428/360 simplified gives 107/90
- So, 1/45 + 84/72 = 107/90
In mixed form: 117/90
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