Add 81/98 and 28/40
81/98 + 28/40 is 374/245.
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,
81/98 = 81 × 20/98 × 20 = 1620/1960 - Likewise, for the 2nd fraction, since 40 × 49 = 1960,
28/40 = 28 × 49/40 × 49 = 1372/1960 - Add the two like fractions:
1620/1960 + 1372/1960 = 1620 + 1372/1960 = 2992/1960 - 2992/1960 simplified gives 374/245
- So, 81/98 + 28/40 = 374/245
In mixed form: 1129/245
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