Add 4/80 and 42/90
4/80 + 42/90 is 31/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
4/80 = 4 × 9/80 × 9 = 36/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
42/90 = 42 × 8/90 × 8 = 336/720 - Add the two like fractions:
36/720 + 336/720 = 36 + 336/720 = 372/720 - 372/720 simplified gives 31/60
- So, 4/80 + 42/90 = 31/60
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