Add 28/40 and 8/45
28/40 + 8/45 is 79/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 45 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 45 × 8 = 360,
8/45 = 8 × 8/45 × 8 = 64/360 - Add the two like fractions:
252/360 + 64/360 = 252 + 64/360 = 316/360 - 316/360 simplified gives 79/90
- So, 28/40 + 8/45 = 79/90
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