Add 84/72 and 1/90
1st number: 1 12/72, 2nd number: 1/90
84/72 + 1/90 is 53/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 90 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 90 × 4 = 360,
1/90 = 1 × 4/90 × 4 = 4/360 - Add the two like fractions:
420/360 + 4/360 = 420 + 4/360 = 424/360 - 424/360 simplified gives 53/45
- So, 84/72 + 1/90 = 53/45
In mixed form: 18/45
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