Add 21/16 and 90/35
1st number: 1 5/16, 2nd number: 2 20/35
21/16 + 90/35 is 435/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 35 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 16 × 35 = 560,
21/16 = 21 × 35/16 × 35 = 735/560 - Likewise, for the 2nd fraction, since 35 × 16 = 560,
90/35 = 90 × 16/35 × 16 = 1440/560 - Add the two like fractions:
735/560 + 1440/560 = 735 + 1440/560 = 2175/560 - 2175/560 simplified gives 435/112
- So, 21/16 + 90/35 = 435/112
In mixed form: 399/112
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