Add 28/40 and 7/90
28/40 + 7/90 is 7/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
28/40 = 28 × 9/40 × 9 = 252/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
7/90 = 7 × 4/90 × 4 = 28/360 - Add the two like fractions:
252/360 + 28/360 = 252 + 28/360 = 280/360 - 280/360 simplified gives 7/9
- So, 28/40 + 7/90 = 7/9
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