Add 20/98 and 21/40
20/98 + 21/40 is 1429/1960.
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,
20/98 = 20 × 20/98 × 20 = 400/1960 - Likewise, for the 2nd fraction, since 40 × 49 = 1960,
21/40 = 21 × 49/40 × 49 = 1029/1960 - Add the two like fractions:
400/1960 + 1029/1960 = 400 + 1029/1960 = 1429/1960 - So, 20/98 + 21/40 = 1429/1960
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