Add 90/72 and 54/40
1st number: 1 18/72, 2nd number: 1 14/40
90/72 + 54/40 is 13/5.
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,
90/72 = 90 × 5/72 × 5 = 450/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
54/40 = 54 × 9/40 × 9 = 486/360 - Add the two like fractions:
450/360 + 486/360 = 450 + 486/360 = 936/360 - 936/360 simplified gives 13/5
- So, 90/72 + 54/40 = 13/5
In mixed form: 23/5
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