Add 28/40 and 70/98
28/40 + 70/98 is 99/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 98 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 40 × 49 = 1960,
28/40 = 28 × 49/40 × 49 = 1372/1960 - Likewise, for the 2nd fraction, since 98 × 20 = 1960,
70/98 = 70 × 20/98 × 20 = 1400/1960 - Add the two like fractions:
1372/1960 + 1400/1960 = 1372 + 1400/1960 = 2772/1960 - 2772/1960 simplified gives 99/70
- So, 28/40 + 70/98 = 99/70
In mixed form: 129/70
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