Add 28/90 and 40/72
28/90 + 40/72 is 13/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
28/90 = 28 × 4/90 × 4 = 112/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
40/72 = 40 × 5/72 × 5 = 200/360 - Add the two like fractions:
112/360 + 200/360 = 112 + 200/360 = 312/360 - 312/360 simplified gives 13/15
- So, 28/90 + 40/72 = 13/15
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