Add 72/18 and 90/45
1st number: 4 0/18, 2nd number: 2 0/45
72/18 + 90/45 is 6/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
72/18 = 72 × 5/18 × 5 = 360/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
90/45 = 90 × 2/45 × 2 = 180/90 - Add the two like fractions:
360/90 + 180/90 = 360 + 180/90 = 540/90 - 540/90 simplified gives 6/1
- So, 72/18 + 90/45 = 6/1
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