Add 28/98 and 9/40
28/98 + 9/40 is 143/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 40 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 98 × 20 = 1960,
28/98 = 28 × 20/98 × 20 = 560/1960 - Likewise, for the 2nd fraction, since 40 × 49 = 1960,
9/40 = 9 × 49/40 × 49 = 441/1960 - Add the two like fractions:
560/1960 + 441/1960 = 560 + 441/1960 = 1001/1960 - 1001/1960 simplified gives 143/280
- So, 28/98 + 9/40 = 143/280
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