Add 42/98 and 15/40
42/98 + 15/40 is 45/56.
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,
42/98 = 42 × 20/98 × 20 = 840/1960 - Likewise, for the 2nd fraction, since 40 × 49 = 1960,
15/40 = 15 × 49/40 × 49 = 735/1960 - Add the two like fractions:
840/1960 + 735/1960 = 840 + 735/1960 = 1575/1960 - 1575/1960 simplified gives 45/56
- So, 42/98 + 15/40 = 45/56
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