Add 2/45 and 21/40
2/45 + 21/40 is 41/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
2/45 = 2 × 8/45 × 8 = 16/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
21/40 = 21 × 9/40 × 9 = 189/360 - Add the two like fractions:
16/360 + 189/360 = 16 + 189/360 = 205/360 - 205/360 simplified gives 41/72
- So, 2/45 + 21/40 = 41/72
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