Add 15/40 and 72/98
15/40 + 72/98 is 435/392.
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,
15/40 = 15 × 49/40 × 49 = 735/1960 - Likewise, for the 2nd fraction, since 98 × 20 = 1960,
72/98 = 72 × 20/98 × 20 = 1440/1960 - Add the two like fractions:
735/1960 + 1440/1960 = 735 + 1440/1960 = 2175/1960 - 2175/1960 simplified gives 435/392
- So, 15/40 + 72/98 = 435/392
In mixed form: 143/392
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