Add 72/5 and 40/90
1st number: 14 2/5, 2nd number: 40/90
72/5 + 40/90 is 668/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
72/5 = 72 × 18/5 × 18 = 1296/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
40/90 = 40 × 1/90 × 1 = 40/90 - Add the two like fractions:
1296/90 + 40/90 = 1296 + 40/90 = 1336/90 - 1336/90 simplified gives 668/45
- So, 72/5 + 40/90 = 668/45
In mixed form: 1438/45
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